1 sm. red onion, chopped fine (1/3 c.)
1/4 c. olive oil
1 (14 1/2 oz.) can tomatoes, well drained
1/2 tsp. salt
1 (6 oz.) can tuna, packed in oil
1/4 tsp. freshly ground black pepper
8 oz. med. macaroni shells, freshly cooked and drained

Cook onion in hot oil over low heat in small saucepan about 10 minutes until golden brown. Add tomatoes; break up with fork and cook about 10 minutes until liquid is evaporated. Add tuna and stir with a fork to break up chunks; mix well. Add salt and pepper, simmer 8 to 10 minutes. Add to pasta; toss to mix. Great on a cold night when you want something good but you don't feel like cooking.