1 can chunky ham
1 stick butter
1 tbsp. poppy seeds
1/2 tbsp. minced onion
1/2 tbsp. Worcestershire sauce
1 1/2 tbsp. prepared mustard
Grated Monterey Jack cheese
Pepperidge Farm party rolls

Break apart ham in a large bowl. Melt butter and stir in all remaining ingredients except for the cheese. Pour melted mixture over ham and mix well. The ham mixture may be refrigerated until used. Spread ham mixture over small party rolls that have been cut in half. Sprinkle grated cheese over top. Replace top of roll, cover with foil and bake at 350 degrees for approximately 10 minutes.