Ingredients :
2 1/2 lbs ground beef
1 medium onion, chopped
1 -2 jalapeno pepper (optional)
2 tablespoons minced fresh garlic (or to taste)
fresh sliced mushrooms, any amount (or use canned, drained)
1 cup grated parmesan cheese, divided (or to taste)
3 (8 ounce) cans tomato sauce
salt and pepper
2 cups grated mozzarella cheese (or to taste)
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