1 pkg. (10 oz.) frozen green peas
2 c. cubed cooked ham
1 c. shredded Cheddar cheese (about 4 oz.)
2 tbsp. chopped onion
3 tbsp. mayonnaise or salad dressing
1 1/2 tsp. prepared mustard
1/2 tsp. salt

Rinse peas with small amount of running cold water to separate and remove ice crystals; drain. Mix all ingredients. Cover; chill at least 2 hours. Serve on bib lettuce cups.