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Meatball Sub Bubble Up Bake


Meatball Sub Bubble Up Bake is a fun and tasty twist on the classic meatball sub. This casserole combines tender biscuits, savory meatballs, and gooey cheese, all baked together in a flavorful marinara sauce. Perfect for a family dinner or a potluck, this dish is sure to be a hit with both kids and adults. In this blog post, we’ll guide you through the step-by-step process of making Meatball Sub Bubble Up Bake, provide helpful cooking notes, and offer variations to suit different tastes and dietary preferences.



  • 1 (16 oz) can refrigerated biscuits (8 biscuits)
  • 1 (14 oz) bag frozen Italian meatballs, thawed
  • 2 cups marinara sauce
  • 1/2 teaspoon garlic powder
  • 1 teaspoon Italian seasoning
  • 2 cups mozzarella cheese, grated


Step 1: Prepare the Ingredients

  1. Preheat Oven:
    • Preheat your oven to 375°F (190°C).
  2. Cut the Biscuits:
    • Open the can of refrigerated biscuits and cut each biscuit into quarters.
  3. Thaw the Meatballs:
    • Ensure the frozen Italian meatballs are fully thawed. If they are still frozen, you can microwave them on a defrost setting or leave them in the refrigerator overnight.

Step 2: Assemble the Casserole

  1. Mix the Sauce and Seasonings:
    • In a large bowl, combine the marinara sauce, garlic powder, and Italian seasoning. Stir well to mix.
  2. Combine Biscuits and Meatballs:
    • Add the biscuit quarters and thawed meatballs to the bowl with the marinara sauce. Gently toss to coat everything evenly with the sauce.
  3. Layer in Baking Dish:
    • Grease a 9×13-inch baking dish with cooking spray or butter.
    • Pour the biscuit and meatball mixture into the baking dish, spreading it out evenly.
  4. Top with Cheese:
    • Sprinkle the grated mozzarella cheese evenly over the top of the mixture.

Step 3: Bake the Casserole

  1. Bake:
    • Place the baking dish in the preheated oven.
    • Bake for 25-30 minutes, or until the biscuits are golden brown and the cheese is melted and bubbly.

Step 4: Serve

  1. Cool Slightly:
    • Allow the casserole to cool for a few minutes before serving.
  2. Serve:
    • Serve the Meatball Sub Bubble Up Bake hot, garnished with fresh basil or parsley if desired.

Cook Notes and Variations

Cook Notes:

  • Biscuits: Make sure to cut the biscuits into quarters to ensure they cook evenly.
  • Meatballs: If using homemade meatballs, ensure they are fully cooked before adding them to the casserole.


  • Vegetarian Version:
    • Use vegetarian meatballs and a vegetable-based marinara sauce for a meat-free version.
  • Spicy Meatball Sub Bubble Up Bake:
    • Add a pinch of red pepper flakes to the marinara sauce for a spicy kick.
  • Cheesy Garlic Version:
    • Add 1/2 cup of grated Parmesan cheese to the mozzarella for extra cheesiness and sprinkle some additional garlic powder over the top before baking.
  • Herb and Cheese Variation:
    • Add 1 teaspoon of dried basil or oregano to the marinara sauce and sprinkle some fresh chopped herbs over the baked casserole for added flavor.

Frequently Asked Questions (FAQs)

1. Can I use homemade meatballs?

Yes, you can use homemade meatballs. Just ensure they are fully cooked before adding them to the casserole.

2. How do I store leftovers?

Store any leftover Meatball Sub Bubble Up Bake in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave before serving.

3. Can I make this casserole ahead of time?

Yes, you can assemble the casserole ahead of time and refrigerate it until ready to bake. Cover it tightly with plastic wrap or foil and store it in the refrigerator for up to 24 hours. Bake as directed, adding a few extra minutes to the baking time if needed.


4. What can I serve with Meatball Sub Bubble Up Bake?

This casserole pairs well with a simple green salad, garlic bread, or steamed vegetables.

5. Can I use a different type of cheese?

Yes, you can use other types of cheese such as provolone, cheddar, or a blend of Italian cheeses for different flavor profiles.

Meatball Sub Bubble Up Bake is a delicious and easy meal that’s perfect for any occasion. With its savory meatballs, tender biscuits, and gooey cheese, this casserole is sure to be a hit with your family and friends. Whether you’re making it for a weeknight dinner or a special gathering, this recipe is simple to follow and full of flavor. Give this Meatball Sub Bubble Up Bake recipe a try and enjoy a comforting and satisfying meal. Happy cooking!