These Cheesy Beef Meatballs with Roasted Bell Peppers are a hearty sheet-pan dinner featuring juicy seasoned meatballs, sweet roasted red and yellow peppers, red onion, and plenty of melted cheddar cheese. Everything roasts together until deeply caramelized and bubbling, creating a colorful, family-friendly meal packed with savory flavor.
Why You’ll Love It
- Juicy homemade beef meatballs with a cheesy golden topping
- Roasted peppers and onions add sweetness and color
- Easy sheet-pan preparation keeps cleanup simple
- Perfect for family dinners, meal prep, or casual entertaining
Ingredients Overview
Beef Meatballs
- 1½ lbs ground beef
- ½ cup breadcrumbs
- ¼ cup whole milk
- 1 large egg
- ½ cup finely diced onion
- 3 garlic cloves, minced
- ½ cup grated Parmesan cheese
- 2 tbsp fresh parsley, chopped
- 1 tsp Italian seasoning
- 1 tsp smoked paprika
- 1 tsp garlic powder
- 1 tsp salt
- ½ tsp black pepper
Roasted Peppers & Onions
- 1 red bell pepper, sliced
- 1 yellow bell pepper, sliced
- 1 orange bell pepper, sliced
- 1 medium red onion, sliced
- 2 tbsp olive oil
- ½ tsp Italian seasoning
- ½ tsp salt
- ¼ tsp black pepper
Cheese Topping
- 1½ cups shredded cheddar cheese
- ½ cup shredded mozzarella cheese
- ¼ cup grated Parmesan cheese
Optional Sauce
- ½ cup beef broth
- 2 tbsp Worcestershire sauce
- 1 tbsp tomato paste
- 1 tsp Dijon mustard
Garnish
- Fresh parsley, chopped
- Fresh cilantro, optional
- Freshly cracked black pepper
Step-by-Step Instructions
1. Prepare the Oven
Preheat the oven to 400°F (200°C).
Lightly grease a large rimmed baking sheet or roasting pan.
2. Prepare the Meatball Mixture
In a large bowl, combine breadcrumbs and milk.
Let the mixture rest for about 2–3 minutes.
Add ground beef, egg, onion, garlic, Parmesan, parsley, Italian seasoning, smoked paprika, garlic powder, salt, and black pepper.
Mix gently until just combined.
3. Shape the Meatballs
Roll the beef mixture into approximately 16–18 meatballs.
Try to keep them similar in size so they cook evenly.
Arrange the meatballs across the prepared baking sheet.
4. Prepare the Vegetables
Place the sliced bell peppers and red onion around the meatballs.
Drizzle with olive oil.
Season with Italian seasoning, salt, and black pepper.
Toss the vegetables gently while keeping the meatballs in place.
5. Add the Savory Sauce
In a small bowl, whisk together beef broth, Worcestershire sauce, tomato paste, and Dijon mustard.
Drizzle the mixture lightly around the meatballs and vegetables.
This creates flavorful pan juices as everything roasts.
6. Roast
Bake uncovered for 20–25 minutes, until the meatballs are browned and nearly cooked through and the peppers begin to caramelize.
The meatballs should eventually reach an internal temperature of 160°F (71°C).
7. Add the Cheese
Remove the baking sheet from the oven.
Sprinkle cheddar and mozzarella generously over the meatballs.
Add Parmesan over the entire tray.
Return to the oven.
8. Finish Baking
Bake for another 5–8 minutes, until the cheese is melted and bubbling.
For deeper golden cheese, broil for 1–2 minutes at the end while watching carefully.
9. Serve
Remove from the oven and let the meatballs rest for about 5 minutes.
Sprinkle with chopped parsley or cilantro and freshly cracked black pepper.
Spoon some of the roasted peppers, onions, and savory pan juices around each serving.
Cooking Tips
- Avoid overmixing the beef mixture, which can make meatballs dense.
- Keep the meatballs similar in size for even cooking.
- Slice the peppers fairly thick so they remain tender without becoming mushy.
- Use freshly shredded cheese for better melting.
- Broil briefly at the end for the deeply golden finish shown in the dish.
Serving Suggestions
Serve these cheesy beef meatballs with:
- Creamy mashed potatoes
- Steamed rice
- Garlic bread
- Buttered pasta
- Roasted potatoes
- Fresh green salad
Storage
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Reheat covered in a 350°F (175°C) oven until hot, or microwave individual portions.
Add a little extra cheese before reheating for an especially cheesy finish.
Leftover Ideas
- Stuff leftover meatballs and peppers into toasted sandwich rolls.
- Serve them over pasta with marinara sauce.
- Add leftovers to rice bowls with avocado and fresh vegetables.
- Chop the meatballs and use them as a filling for quesadillas.
FAQs
Can I use ground turkey instead of beef?
Yes. Ground turkey or chicken can be substituted using the same seasonings.
Can I prepare the meatballs ahead of time?
Yes. Shape them up to 24 hours ahead, cover, refrigerate, and roast when ready.
What cheese works best?
Cheddar gives the strongest flavor, while mozzarella provides excellent melt. Monterey Jack or Colby Jack are also great choices.
Can I add tomato sauce?
Yes. Pour about 1½ cups of marinara sauce around the meatballs before adding the cheese for a more Italian-inspired version.
Final Thoughts
Cheesy Beef Meatballs with Roasted Bell Peppers combine juicy seasoned beef, sweet caramelized vegetables, savory pan juices, and bubbling melted cheese in one satisfying sheet-pan dinner. Colorful, comforting, and easy to customize, this recipe is perfect for weeknight meals, family dinners, or anytime you want a hearty homemade dish with minimal cleanup.