Step 1

Preheat oven to 375 degrees F.

Step 2

Brown the ground beef in a large skillet over medium high heat until brown and cooked through; then add the mushrooms, onion and garlic. Saute for 2-3 minutes until the mushrooms start to soften.

Step 3

Add the tomato sauce and vinegar and simmer on low for 5 minutes. Add the mixture to a 2qt. oven safe casserole dish.

Step 4

In a medium bowl, combine the three cheeses, oregano and rosemary; mix well. Add the mixture on top of the meat mixture; then bake for 30 minutes until hot and bubbly.