Preheat oven to 375 degrees. Lightly grease regular-size muffin tin with nonstick spray.

In a large skillet over medium-high heat brown the ground beef. Stir beef continuously to break up any large chunks. Drain well along with canned olives and mushrooms.

Add beef, olives, mushrooms, garlic, red pepper flakes, spaghetti sauce and salt, pepper, back to the skillet and reduce heat to low. Cover and simmer for 15 to 20 minutes stirring occasionally.

Separate biscuits and flatten into 5 1/2" rounds. Add approximately 1/3 cup of the beef mixture to the center of each flattened biscuit. Sprinkle with 1 tablespoon of mozzarella cheese. Gather, pinch and pleat the biscuits around the filling, so that the center filling is still exposed. Place in the muffin tin.

Stir parsley into melted butter and brush tops of biscuits.Top with parmesan, finely chopped bell pepper, onion, pepperoni or any of your other favorites. Bake for 20 to 25 minutes until they are golden brown. Remove and let cool for a minute. Enjoy!