Easy Stuffed Pepper Casserole

1/2 teaspoon black pepper
3/4 cup Mozzarella cheese, shredded
3/4 cup cheddar cheese, shredded
How To Make Stuffed Pepper Casserole
In a large skillet cook the ground beef, breaking apart. Once it is mostly cooked add in the onions and bell peppers and cook for 5-10 minutes until they start to soften.
Add the garlic to the beef mixture and cook for a minute or two, just until you can start to smell it.