Step 1

Preheat oven to 350°F. Spray a medium sized loaf pan with nonstick spray.

Step 2

In a medium skillet, heat 1 tablespoon of the olive oil. Add the peppers, onion and garlic and cook until just soft. Transfer to a large mixing bowl.

Step 3

When the peppers and onion are slightly cooled, mix in the remaining ingredients minus the marinara. Use your hands to pack the meat mixture into the loaf pan. Top evenly with marinara.

Step 4

Bake for 50 to 60 minutes or until an instant-read thermometer, inserted in the middle of the meatloaf, reads 160°F. Remove from the oven and let rest 5 minutes before slicing and serving.