Step 1

Preheat oven to 400 degrees, and line a sheet pan with parchment paper (or spray it with nonstick spray).

Step 2

In a large bowl, combine ground turkey, mushrooms, onion, egg, garlic, basil, parsley, parmesan, Worcestershire sauce, Italian seasoning, salt, black pepper, and crushed red pepper. I find that it's easiest to mix it up with my handsu002du002dif that's not your speed, use a spoon.

Step 3

Once everything is combined, form the mixture into the meatballs. We made 16, but that will vary based on how big your make yoursu002du002dours were about an inch and a half in diameter. Place them on the prepared baking sheet and into the oven for 20 minutes. After 20 minutes, flip them and cook for another 20 minutes or until the internal temperature reaches 165 degrees. The cook time will vary based on the size of your meatballs, so keep an eye on them and check the temperature frequently.

Step 4

When the meatballs have about 15 minutes left, add olive oil and onions to a cast-iron pan (or oven-safe nonstick pan) and cook for two minutes over medium-low heat, stirring constantly to prevent them from burning.

Step 5

Add bell peppers and cook for an additional five minutes. Then add garlic and cook for a minute.

Step 6

Add marinara sauce and crushed red pepper and turn the heat to low.

Step 7

Once the meatballs are done, put them into the pan with the peppers and sauce and cover them with the mozzarella. Then broil them on high for about 5 minutes, or until the cheese is melted (check on them frequentlyu002du002dit happens fast!). Serve however you'd like and enjoy!