Cheesy Meatball Subs

Ingredients for Cheesy Meatball Subs

When I make cheesy meatball subs, I keep the ingredient list simple and familiar. I always use 80/20 ground beef because that little bit of fat keeps the meatballs juicy, not dry. My preference is freshly grated Parmesan — it melts into the meat mixture in a way that pre-shredded just does not. Here is everything you will need:

• 1 lb ground beef (80/20 recommended — I always use this ratio for the best texture)
• 1/2 cup breadcrumbs
• 1/4 cup grated Parmesan cheese (freshly grated preferred)
• 1/4 cup fresh parsley, chopped
• 1 clove garlic, minced
• 1 egg
• Salt and pepper to taste
• 2 cups marinara sauce (a good quality jarred sauce works perfectly here)
• 8 oz shredded mozzarella cheese
• 4 hoagie rolls
• Olive oil for toasting

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Step-by-Step Instructions

In my experience, reading through all the steps before you start makes the whole process smoother — once those meatballs come out of the oven, things move quickly and you want to be ready.

Step 1: Preheat your oven to 375 degrees F (190 degrees C). Line a baking sheet with foil for easy cleanup.

Step 2: In a large mixing bowl, combine the ground beef, breadcrumbs, Parmesan, parsley, garlic, egg, salt, and pepper. Mix until just combined — do not overwork the meat or your meatballs will turn tough. Form into evenly sized balls, about 1.5 inches across. Keeping them uniform helps them cook at the same rate.

Step 3: Place meatballs on the prepared baking sheet and bake for 20 to 25 minutes, until cooked through and lightly browned on the outside. They should reach an internal temperature of 165 degrees F. Do not skip the thermometer check — undercooked meatballs are the most common mistake with this recipe.

Step 4: While the meatballs are baking, warm the marinara in a saucepan over medium heat. Once the meatballs are done, transfer them into the sauce and let everything simmer together for 3 to 4 minutes. This short simmer is what gives the meatballs that saucy, deep flavor.

Step 5: Slice the hoagie rolls open and brush the insides lightly with olive oil. Fill each roll generously with meatballs and sauce, then top with a good handful of shredded mozzarella.

Step 6: Place the assembled subs under the broiler for 2 to 3 minutes, watching closely the entire time, until the cheese is melted and bubbly with golden spots. Broilers vary widely in heat so stay at the oven and do not walk away. Serve warm right away.

What to Serve with Cheesy Meatball Subs

These hearty subs pair best with sides that balance their richness without competing with the bold marinara flavors.

Simple garden salad: A crisp mix of romaine, cucumber, and cherry tomatoes with a light Italian dressing cuts through the richness of the cheese and meat perfectly. It keeps the meal from feeling too heavy.

Roasted garlic green beans: The slight char and savory bite of roasted green beans add a veggie boost and a satisfying texture contrast to the soft, saucy sub.

Tomato soup: On a cold night, a warm bowl of tomato soup alongside cheesy meatball subs creates a full, comforting dinner the whole family will love. Our Creamy One Pot Broccoli Cheddar Orzo also makes a cozy, crowd-pleasing companion if you want something heartier on the side.

Classic coleslaw: A cool, creamy slaw brings a refreshing crunch that works perfectly alongside the warm, melty sub, especially for casual family dinners.

Something cheesy and saucy alongside: If you love the Italian-American comfort food vibe of this meal, our Dump and Bake Meatball Casserole and Spinach and Ricotta Stuffed Shells are two recipes worth bookmarking for the next night you want that same cozy energy. The Creamy Italian Sausage Rigatoni is another weeknight favorite that shares the same bold, saucy character.

Pasta night pairing: If you are feeding a bigger crowd and want to stretch the meal, our Chicken Mozzarella Pasta and Creamy Italian Chicken Pasta both pair beautifully with the Italian flavors in these cheesy meatball subs and round out a spread everyone will love.

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Storage and Serving Tips

Store leftover meatballs and sauce in an airtight container in the refrigerator for up to 4 days. Keep the rolls and toppings stored separately so they do not get soggy — assembling a fresh sub each time makes a big difference in texture.

To reheat, warm the meatballs and sauce in a small saucepan over low heat, or microwave in 45-second intervals until heated through. I recommend assembling fresh subs after reheating rather than storing an already-built sub.

Pro tip: the meatballs and sauce taste even better the next day after the flavors have had time to come together overnight. You can also freeze the cooked meatballs in sauce for up to 2 months for an easy future dinner. Thaw overnight in the fridge before reheating.

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