PREPARATION:
- Prepare Tomato Sauce; set aside.
- Preheat oven to 350°F.
- Combine ground beef, onion, bell pepper, garlic, parsley, basil, oregano, salt and black pepper in medium bowl; mix lightly. Remove stems from mushrooms and finely chop; add to ground beef mixture. Stuff mixture into mushroom caps, rounding tops.
- Pour Tomato Sauce into shallow casserole dish large enough to hold mushrooms in single layer. Place mushrooms, stuffing side up, in sauce; cover.
- Bake 20 minutes; remove cover. Sprinkle with Parmesan cheese. Continue baking, uncovered, 15 minutes. Serve with spaghetti. Garnish with fresh basil.
