• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Sugary Logic
  • Home
  • About Me
  • Recipe Index
  • Navigation Menu: Social Icons

    • Facebook
    • Instagram
    • Pinterest
menu icon
go to homepage
  • Home
  • Recipes
  • About Me
    • Facebook
    • Instagram
    • Pinterest
  • subscribe
    search icon
    Homepage link
    • Home
    • Recipes
    • About Me
    • Facebook
    • Instagram
    • Pinterest
  • ×
    Home » Recipes » Sandwiches

    Crockpot Frozen Turkey Meatball Subs

    Published: May 16, 2022 · Modified: Sep 14, 2022 by Katelyn Theofanis · This post may contain affiliate links · This blog generates income via ads · #sponsoredpost · Leave a Comment

    Jump to Recipe Print Recipe

    Easy Crockpot Frozen Turkey Meatball Subs are tender, juicy, and full of flavor. This simple recipe uses basic ingredients and requires minimal prep time. Frozen turkey meatballs cook alongside sliced bell peppers and store-bought marinara sauce. The finished meatballs are served on garlic bread and covered in gooey mozzarella cheese. These are the BEST meatball subs!

    A close-up of a meatball sub.

    Meatball subs at home, can it be done? Yes! These turkey meatball subs could not be easier to make thanks to the slow cooker and already made ingredients. This recipe uses shortcuts like frozen meatballs and jarred sauce. With five minutes of prep time, this low-labor recipe is perfect for weeknight or game-day cooking.

    Frozen turkey meatballs simmer in marinara sauce alongside bell pepper slices. The flavor of the peppers infuses the sauce for additional flavor. For the ultimate sandwich, the juicy, tender meatballs and peppers are served on top of garlic bread and then covered in mozzarella cheese. You are going to want to make these homemade meatball subs again and again!

    While this recipe calls for jarred marinara sauce, you can certainly make your own Tomato Sauce too. Use your favorite brand of meatballs, but be sure to check if they are cooked or uncooked prior to using them. For homemade meatballs, try this Easy Beef Meatball Recipe.

    Jump to:
    • Why You Will Love This Recipe
    • Ingredients
    • Instructions
    • Substitutions
    • Variations
    • Suggested Equipment
    • Storage
    • What to Serve with Meatball Subs
    • Expert Tips
    • Frequently Asked Questions
    • Related Recipes
    • 📖 Recipe
    • 💬 Comments

    Why You Will Love This Recipe

    • Quick and Easy - The crockpot does most of the cooking for you. All that's up to you is making the garlic bread and assembling the sandwiches.
    • Simple Ingredients - You will not find any fancy ingredients in this recipe. It calls for seven simple items including frozen meatballs, bell peppers, and jarred sauce.
    • Weeknight Cooking or Game-Day Eats - This kid-friendly meal is perfect for weeknight cooking thanks to the crockpot. But do not limit these subs to just weeknight cooking. Turkey meatball subs are ideal game day sandwiches too!
    • Make-Ahead - Cook the meatballs and peppers ahead of time and keep warm (in the crockpot) until service.

    Ingredients

    The ingredients you need for this recipe.
    • Frozen Turkey Meatballs (cooked)
    • Jarred Marinara Sauce - or homemade tomato sauce
    • Bell Peppers (sliced)
    • Rolls - French, hoagie, or sub rolls
    • Butter (room temperature)
    • Garlic (minced)
    • Part-Skim Mozzarella Cheese (shredded)
    • For Garnish - grated parmesan cheese, chopped fresh parsley

    See the recipe card for quantities.

    Instructions

    1 - Place the frozen turkey meatballs and sliced bell peppers at the base of a slow cooker.

    2 - Pour the entire jar of sauce over the meatballs and peppers. Set the slow cooker to high and cook for 2 ½ to 3 hours.

    Frozen turkey meatballs and sliced bell peppers at the base of a crockpot.
    Transfer frozen turkey meatballs and sliced peppers to a crockpot.
    Turkey meatballs and sliced bell peppers covered in marinara sauce.
    Cover the meatballs and peppers in marinara sauce.

    3 - In a small bowl, combine the softened butter and minced garlic. Slather the garlic butter into each roll. Set the rolls under the broiler and heat until golden brown.

    4 - Stuff each toasted roll with peppers and three meatballs. Cover the meatballs in additional sauce from the slow cooker. Sprinkle each sandwich with shredded cheese. Broil until the cheese is melted.

    Four rolls with garlic butter spread inside.
    Spread garlic butter inside each roll and broil until golden.
    Un-broiled meatball subs covered in shredded cheese on a sheet tray.
    Scoop meatballs and peppers onto the garlic bread, cover in cheese, and broil.

    Serve immediately.

    Substitutions

    • French Rolls - Use fresh French bread.
    • Turkey Meatballs - Use any variety of frozen meatball.
    • Cheese - Swap the part-skim mozzarella for shredded or sliced provolone or sliced mozzarella.

    For a homemade meatball variation, try my Easy Beef Meatballs.

    Variations

    This recipe is easily adaptable, so have fun with it!

    • Spicy - Add ½ teaspoon of crushed red pepper flakes along with the other ingredients before cooking.
    • Cheesy Garlic Bread - Cover the interior of the rolls with garlic butter and a slice, or two, of provolone cheese, then broil.
    Turkey meatball subs on a sheet tray.

    Suggested Equipment

    • Crock-Pot 3.5 Quart Casserole Manual Slow Cooker
    • USA Pan Bakeware Half Sheet Pan

    Storage

    For the best leftovers, store the meatball-pepper mixture separate from the rolls. Transfer cooled meatballs and sauce to an airtight container. Store in the refrigerator for up to 4 days.

    Already assembled the subs? That's okay! Wrap the sandwich or sandwiches individually in foil. To reheat: Place the foil-wrapped sandwich in the oven at 300 degrees F. Cook until heated and the cheese is melted. *The bottom of the sandwich will be a little soft.

    Can you freeze meatball subs? The meatballs, peppers, and sauce can be frozen. Transfer the completely cooled mixture to an airtight container. Freeze for up to 3 months.

    What to Serve with Meatball Subs

    Meatball subs are delicious with a multitude of sides from veggies to potato chips. Here are a few of my favorite things to serve alongside these delicious, hot sandwiches.

    • Oven Fries
    • Crispy Air Fryer Frozen Broccoli
    • Crispy Air Fryer Sweet Potato Wedges
    • Gluten-Free Halloumi Fries
    • 20-Minute Pesto Potato Salad
    • Air Fryer Cauliflower Tots (from frozen)

    Expert Tips

    1. Toast the Buns. Nobody likes a soggy sandwich. As this recipe specifies, toast the rolls prior to adding the meatballs and sauce.
    2. Cover the Tray in Foil. For easier clean-up, line the sheet tray with foil.
    3. Assemble Upon Service. The best meatball subs are served hot with gooey melted cheese. Wait to assemble the subs until you are ready to serve them. *This will help prevent sogginess as well.
    4. Scale the Recipe. To serve more hungry people, you can easily double-up this recipe.
    A tray of turkey meatball subs.

    Frequently Asked Questions

    How do you keep the buns from getting soggy?

    Toast the rolls prior to adding the hot meatballs and marinara. In addition, be sure to assemble the meatball sandwiches upon service not prior to. (The longer they sit, the softer the bread becomes.)

    What is the best store-bought sauce for meatball subs?

    The answer to this question is all up to personal preference. However, I love Raos and Classico (Organic) for their flavor and ingredients.

    Are frozen turkey meatballs cooked?

    In most cases, frozen turkey meatballs are already cooked. Be sure to check the packaging.

    What toppings go well with meatball sandwiches?

    Naturally, melted cheese is delicious on top of meatball subs. I love to use shredded mozzarella (like this recipe) in addition to grated parmesan. Fresh chopped parsley or basil adds a lovely garnish and color. Other delicious toppings include pesto, crushed red pepper flakes, and giardiniera.

    Related Recipes

    • Close-up of chicken thighs covered in bbq sauce.
      Easy Slow Cooker BBQ Chicken Thighs
    • Slow-Cooker Buffalo Chicken
    • Slow-Cooker Greek Chicken
    • A wooden spoon scooping into a crockpot full of shredded salsa verde chicken.
      Slow-Cooker Salsa Verde Chicken

    If you make the recipe, don’t forget to rate the recipe and let me know what you think in the comments below! Take pictures, tag #sugarylogic, and share them with me on Instagram or Facebook. 

    📖 Recipe

    Frozen turkey meatball subs on a sheet tray.

    Crockpot Frozen Turkey Meatball Subs

    Katelyn Theofanis
    Easy Crockpot Frozen Turkey Meatball Subs are tender, juicy, and full of flavor. This simple recipe uses basic ingredients and requires minimal prep time. Frozen turkey meatballs cook alongside sliced bell peppers and store-bought marinara sauce. The finished meatballs are served on garlic bread and covered in gooey mozzarella cheese. These are the BEST meatball subs!
    5 from 2 votes
    Print Recipe Pin Recipe
    Prep Time 5 minutes mins
    Cook Time 3 hours hrs 10 minutes mins
    Total Time 3 hours hrs 15 minutes mins
    Course Main Course
    Cuisine American
    Servings 4 sandwiches
    Calories 667 kcal

    Equipment

    • Slow-Cooker

    Ingredients
      

    • 12 frozen turkey meatballs
    • 2 bell peppers sliced
    • 24 oz marinara sauce
    • 4 French, hoagie, or sub rolls
    • 3 tablespoon unsalted butter softened
    • 1 clove garlic minced
    • 8 oz part-skim mozzarella cheese shredded
    • For garnish: grated Parmesan cheese and chopped fresh parsley

    Instructions
     

    • Place the frozen turkey meatballs and sliced bell peppers at the base of a slow cooker.
    • Pour the entire jar of sauce over the meatballs and peppers. Set the slow-cooker to high and cook for 2 ½ to 3 hours.
    • In a small bowl, combine the softened butter and minced garlic. Slather the garlic butter into each roll. Set the rolls under the broiler and heat until golden brown.
    • Stuff each toasted roll with peppers and three meatballs. Cover the meatballs in additional sauce from the slow cooker. Sprinkle each sandwich with shredded cheese. Broil until the cheese is melted.
    • Garnish with grated Parmesan cheese and fresh parsley. Serve immediately.

    Notes

    • STORE: Store the meatball-pepper mixture separate from the rolls for the best leftovers. Transfer cooled meatballs and sauce to an airtight container. Store in the refrigerator for up to 4 days.
      • Already assembled the subs? That's okay! Wrap the sandwich or sandwiches individually in foil. To reheat: Place the foil-wrapped sandwich in the oven at 300 degrees F. Cook until heated and the cheese is melted. *The bottom of the sandwich will be a little soft.
    • FREEZE: The meatballs, peppers, and sauce can be frozen. Transfer the completely cooled mixture to an airtight container. Freeze for up to 3 months.

    Nutrition

    Calories: 667kcalCarbohydrates: 22gProtein: 42gFat: 29gSaturated Fat: 15gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gTrans Fat: 1gCholesterol: 104mgSodium: 1544mgPotassium: 684mgFiber: 8gSugar: 13gVitamin A: 3135IUVitamin C: 88mgCalcium: 475mgIron: 2mg
    Tried this recipe?Tag your photo #sugarylogic or @sugarylogic ANY QUESTIONS? Please leave a comment below!

    Did you make this? Be sure to leave a review below and tag me on Instagram, Facebook, or Pinterest!

    More Sandwiches

    • Egg salad with pickles in a bowl.
      Easy Egg Salad with Pickles
    • A smashed chickpea salad sandwich on a parchment-lined board.
      Easy Smashed Buffalo Chickpea Salad
    • Chicken Waldorf salad in white bowl.
      Healthy Chicken Waldorf Salad
    • Avocado Tuna Salad

    About Me

    I am the recipe developer, content creator, and photographer behind Sugary Logic. Sugary Logic's recipes are clear, simple, and easy to learn. These are all recipes I enjoy regularly (yes, the sweets too.) I'm so happy you're here, and I hope you enjoy these recipes as much as I do. Read More…

    Reader Interactions

    Comments

    No Comments

    5 from 2 votes (2 ratings without comment)

    Did you make this recipe? Let me know! Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    This site uses Akismet to reduce spam. Learn how your comment data is processed.

    Primary Sidebar

    author

    Hi, welcome to Sugary Logic! I'm Katelyn. I am an experienced chef and home cook publishing simple and easy recipes here on my food blog, Sugary Logic. Sugary Logic's recipes will save you time and allow you to create fast and easy meals as sophisticated as any restaurant meal.

    More about me →

    Popular

    • A stack of pumpkin chocolate chip scones.
      Pumpkin Chocolate Chip Scones

    • A slice of apple streusel cake.
      The Best Apple Streusel Cake Recipe

    • An unwrapped pumpkin banana muffin sitting on a wire rack.
      The Best Pumpkin Banana Muffins Recipe

    • A banana flaxseed muffin cut in half.
      Healthy Banana Flaxseed Muffins Recipe

    Trending Recipes

    • A large bowl of chicken sausage pasta.
      Chicken Sausage Pasta with Broccoli

    • Quinoa salad with chickpeas in a large bowl.
      Quinoa Salad with Chickpeas

    • A bowl of pesto pasta salad with a wooden spoon.
      Easy Summer Pesto Pasta Salad Recipe

    • Cinnamon streusel muffins on a cooling rack.
      Cinnamon Streusel Muffins

    The Best Scone Recipes

    • Sprinkle covered cake mix scones.
      Easy Funfetti Cake Mix Scones 

    • A plate of coconut scones.
      Coconut Scones Recipe with Coconut Glaze

    • A single gingerbread scone on a wire cooling rack.
      Easy Glazed Gingerbread Scones Recipe

    • A coffee scone on a wire cooling rack.
      Easy Chocolate Chip Coffee Scones Recipe 

    Gluten-Free Recipes

    • Crispy roasted sweet potatoes on a parchment-lined tray with a wooden server.
      Crispy Roasted Sweet Potatoes

    • A close-up of lemon blueberry baked oatmeal.
      Lemon Blueberry Baked Oatmeal

    • Easy Italian Ground Turkey Soup

    • Cauliflower Gnocchi Alla Vodka

    Footer

    ↑ back to top

    About

    • Privacy Policy
    • Recipes
    • About Me

    Contact

    • Contact
    • Subscribe

    Sugary Logic participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate, I earn from qualifying purchases.

    Copyright © 2017 - 2025 Sugary Logic

    Rate This Recipe

    Your vote:




    A rating is required
    A name is required
    An email is required

    Recipe Ratings without Comment

    Something went wrong. Please try again.