Place frozen ravioli in a greased baking dish. Lay pieces flat without overlapping.
Cover completely with tomato sauce (and browned ground beef, if desired).
You could double the ravioli, sauce and meat if you'd like to have 2 layers. I only did a single layer because I was only cooking for 2.
Top with shredded mozzarella cheese.
Cover with foil and bake in a 350F oven for approximately 40 minutes. Uncover and bake an additional 5-10 minutes, until cheese is melted.
During the last 10 minutes, while uncovered, sprinkle with oregano and add some fresh basil leaves. Serve with Italian bread.
Buon appetito!
