1 lb. lean stew beef
1 1/2 c. water
12 oz. tomato paste
2 tbsp. lemon juice
1/2 tsp. sugar
1 tsp. oregano
1 clove garlic
1 lb. pasta shells
1/4 c. Parmesan cheese
2 tbsp. parsley

Brown stew beef in oil. Add salt and pepper to taste. Make a sauce of: water, tomato paste, lemon juice, sugar, oregano and garlic. Pour sauce over meat. Simmer for 1 1/2 hours or cook in pressure cooker for 12 minutes. Serve with cooked pasta shells tossed with Parmesan cheese and parsley.