6 Hard boiled eggs, chopped
2 Slices Bacon
1 Tsp Minced Onion
1/2 Tsp Salt
1/2 Tsp Pepper
1/4 Tsp Prepared Mustard
1/4 C. Mayonnaise
2/3 C. Grated Cheddar Cheese

Several hours ahead of time:

Combine all ingredients except cheese. Shape into small balls. Roll each ball in grated cheese. Refrigerate several hours.