Air Fryer Meatball Bubble Up Bake (Biscuit & Meatball Casserole)

Air Fryer Meatball Bubble Up Bake turns four grocery-store ingredients into a bubbling, cheesy casserole in under 30 minutes. Canned biscuit dough gets cut into pieces, tossed with marinara and meatballs, and air fried until the dough puffs up around the sauce — that “bubble up” effect is exactly where the name comes from. The edges crisp, the centers stay pillowy, and the melted mozzarella on top pulls into strings.

If you have ever made a bubble up pizza casserole in the oven, this is the same idea scaled down for the air fryer. It is the kind of dinner you throw together on a Tuesday when nobody planned anything, and it feeds four people from a single pan.

This is a great and quick meal that you can make in minutes! And the air fryer does a fantastic job at perfectly cooking it up!

Why You’ll Love This Recipe

• Kids actually eat it. It tastes like pizza and meatball subs had a baby.
• Four ingredients. Meatballs, canned biscuits, marinara, mozzarella. That’s the whole list.
• No oven required. The air fryer heats up in under three minutes and won’t warm up your kitchen.
• One pan, one bowl. Mix everything in a bowl, dump it in the pan, done.
• Endlessly adaptable. Swap the meatballs, change the cheese, add vegetables — the method stays the same.

Ingredients Needed

• Meatballs: Frozen and fully thawed, or homemade at room temperature. Italian-style beef or beef-and-pork meatballs work best here. If you would rather cook your own from frozen first, my guide to air fryer meatballs walks through the timing.
• Refrigerated Buttermilk Biscuits: The standard 8-count “Grands”-style tube. Flaky Layers, Butter Tastin’, or Homestyle all work.
• Marinara Sauce: Use a thicker sauce if you have one, since thin sauces soak into the dough and make the biscuits soggy.
• Shredded Mozzarella Cheese: Freshly shredded melts better than pre-shredded, which is coated in anti-caking starch.

A note on the biscuits: do not substitute crescent roll dough. It is far too thin and will dissolve into the sauce instead of puffing.

What Size Pan Do I Need?

This is the step most recipes skip, and it is the one that determines whether the bake works.

You need an oven-safe pan that fits inside your air fryer with at least an inch of clearance on all sides — a 7-inch round cake pan for most basket-style air fryers (5 to 6 quart), or an 8-inch round for larger baskets and oven-style units. Metal, ceramic, or glass all work as long as the manufacturer rates it oven safe.

Basket-style air fryers concentrate heat from a single element above the food, so the top browns faster than the bottom. Oven-style air fryers and Ninja Foodi-type units circulate more evenly and may run a minute or two faster. Either way, you are checking for doneness rather than trusting a timer. If you cook across multiple appliances, the temperature conversions in my charts and tips section are worth bookmarking.

How To Make Air Fryer Meatball Bubble Up Bake

Step 1: Thaw the meatballs. Frozen meatballs must be fully thawed before they go in. Frozen centers will still be cold when the biscuits are done, and re-cooking to fix it burns the top.

Step 2: Cut the biscuit dough. Open the can and cut each biscuit into 6 to 8 pieces, roughly 1-inch each. Kitchen shears are faster than a knife and the dough won’t stick.

Step 3: Combine. In a large bowl, toss the meatballs, biscuit pieces, and marinara until every piece of dough is coated. Coating matters — dry dough won’t brown evenly.

Step 4: Fill the pan. Grease your air fryer pan and transfer the mixture in. Spread it into an even layer rather than mounding it in the center, or the middle will stay raw.

Step 5: Air fry. Cook at 320°F for 12 to 16 minutes, checking at the 10-minute mark. The dough should be puffed, set, and golden at the edges, with no wet dough visible when you cut into a center piece. Cover loosely with foil if the top browns before the middle is done.

Step 6: Add the cheese. Sprinkle the mozzarella over the top and air fry another 1 to 2 minutes at 320°F, just until melted. Watch it — cheese goes from melted to browned quickly at this temperature.

Step 7: Rest and serve. Let it sit 5 minutes before serving. The sauce thickens and the biscuit centers finish setting during the rest.

Pro Tips

• Don’t overfill the pan. Leave about an inch of headroom. The biscuits nearly double as they cook, and an overpacked pan traps steam in the center.
• Cut the dough smaller than you think. Larger chunks look better but hold raw centers.
• Warm the sauce first. Thirty seconds in the microwave takes the chill off and shaves a minute or two of cook time.
• Grease the pan properly. Sauce and cheese cement themselves to bare metal. Butter or cooking spray, corners included.
• Check the center, not the top. A golden top means nothing. Cut a piece from the middle.

Variations & Substitutions

Meatballs: turkey, chicken, or plant-based meatballs all work with the same timing. Cocktail-size meatballs distribute better than large ones and don’t need cutting.

Cheese: provolone brings sharper flavor, and a mix of mozzarella and Parmesan gives you both stretch and salt. Sprinkle Parmesan under the mozzarella so it doesn’t scorch.

Add vegetables: sautéed peppers and onions are the natural pairing — you can borrow the seasoning approach from my air fryer sausage, peppers, and onions. Mushrooms, spinach, or zucchini also work, but cook off their moisture first or the bake turns watery.

Make it pizza-flavored: add pepperoni, a teaspoon of Italian seasoning, and a pinch of garlic powder to the sauce before mixing.

Spice it up: ¼ teaspoon of red pepper flakes or a swap to arrabbiata sauce.

What To Serve With It

This is rich and starchy, so it wants something sharp or green alongside. A simple arugula salad with lemon and olive oil cuts through the cheese. Garlic-roasted broccoli or green beans work if you want another warm side. For a full Italian-American spread, air fryer Italian stuffed mushrooms make a good starter, and Cheesecake Factory-style meatball sliders round out a party table if you’re feeding a crowd.

Storage, Reheating & Freezing

Refrigerator: cool completely, then store in an airtight container for up to 3 days. The biscuits soften in the fridge — that’s normal and reheating brings back most of the texture.

Reheating (air fryer, best method): 320°F for 4 to 6 minutes, until heated through and re-crisped on top. Loosely tent with foil if the cheese starts browning again.

Reheating (microwave): 60 to 90 seconds. Fast, but the biscuits come out soft rather than crisp.

Freezing: freeze cooled portions in a freezer-safe container for up to 2 months. Thaw overnight in the refrigerator and reheat in the air fryer at 320°F for 6 to 8 minutes. Freezing does soften the dough, so this is a “still good, not quite as good” situation.

Make ahead: don’t assemble this in advance. Raw biscuit dough sitting in sauce turns gummy within about 20 minutes. Cut the dough and measure everything ahead if you like, but combine right before cooking.

Frequently Asked Questions

Can I make this in the oven instead? Yes. Assemble in a greased 8×8-inch baking dish and bake at 375°F for 25 to 30 minutes, until the biscuits are cooked through, then add the cheese and bake another 3 to 5 minutes.

Can I use frozen meatballs straight from the freezer? No. Thaw them first. Frozen meatballs won’t heat through in the time it takes the biscuits to cook, and extending the cook time to compensate overcooks the dough.

Why is my biscuit dough still raw in the middle? Almost always one of three things: the pieces were cut too large, the pan was overfilled, or the temperature was too high so the top set before the interior cooked. Drop to 320°F, spread the mixture thinner, and give it more time.

Can I use crescent roll dough or homemade biscuit dough? Crescent rolls are too thin and will disintegrate. Homemade biscuit dough works if it’s a sturdy drop-biscuit or rolled buttermilk dough cut into 1-inch pieces — just expect to add a few minutes.

Do I need to preheat my air fryer? Yes, 3 minutes at 320°F. Starting in a cold air fryer adds unpredictable time and the dough sets unevenly.

Can I double the recipe? Not in one pan. Doubling means a deeper layer, which raw biscuit dough can’t cook through. Make two batches, or use the oven method in a 9×13-inch dish.

Can I use jarred alfredo or vodka sauce instead of marinara? Yes, both work. Cream-based sauces brown a little faster, so start checking around 10 minutes.