1/2 cup grated Parmesan cheese, plus more for topping
1 teaspoon salt
1/2 teaspoon freshly ground black pepper
2 large eggs, beaten
1 1/2 cups marinara sauce or pizza sauce (divided use)
Instructions
Preheat the oven to 350 F.
Combine the ground beef, oats, onion, herbs, garlic powder, 1/2 cup of Parmesan cheese, salt, and pepper. Add the beaten eggs and 1/2 cup of marinara or pizza sauce. Mix well to blend and then pack the mixture into a 9-by-5-by-3-inch loaf pan or into 10 to 12 muffin cups.
Bake the meatloaf for about 1 1/4 hours, or until it reaches 165 F on an instant-read thermometer inserted into the center. For meatloaf muffins, check for temperature after about 30 to 40 minutes.
If desired, spread more marinara or pizza sauce over the top of the loaf or muffins and bake for about 5 minutes longer. Or heat extra marinara or pizza sauce and serve it along with the meatloaf.