1 lb. very lean ground beef
2 tbsp. oil
1/2 c. chopped onion
1 (6 oz.) can broiled mushrooms
1/2 tsp. salt
1/8 tsp. pepper
1 clove garlic, chopped
1 c. sour cream
1 (10 1/2 or 11 oz.) can condensed tomato soup
1 tbsp. Worcestershire sauce
6-8 drops Tabasco sauce
1 (8 oz.) pkg. vermicelli (or angel hair) pasta

Brown beef in oil, add onions, garlic and mushrooms, cooking while combining remaining ingredients (except pasta). Add these to meat mixture. Simmer for 1 hour. Serve over pasta; add Parmesan cheese.

Serves 4 to 6.