1/2 c. chopped onion
2 tbsp. butter
2 c. shredded cooked chicken
8 oz. salsa
1 env. (1 1/4 oz.) taco seasoning mix
12 taco shells
Shredded lettuce
Diced tomatoes
Grated cheddar cheese
Additional salsa to top tacos

Saute onion in butter in medium skillet until translucent. Stir in chicken, salsa, and seasoning mix. Simmer, uncovered, over low heat for 15 minutes.

Meanwhile, heat taco shells. Spoon chicken mixture into taco shells. Add lettuce, tomato and grated cheese. Top with salsa.