I found this recipe on a website for cooks cooking for 50 or more people. So I had to down convert it for a serving for 12 people. I think I got it right. I did post a link to the original recipe below if for some reason you want to invite 60 people over for snacks. Maybe a Super Bowl Party?
1 envelopes herb and garlic dry soup mix
1/2 lb. sour cream
1/2 lb. ricotta cheese
1 ounces pepperoni, chopped
1 cups shredded mozzarella cheese
1 loaves Italian or French bread, sliced
Preheat oven to 350°F. Combine first 4 ingredients in a large bowl.
Stir in 3-3/4 cups mozzarella. divide evenly among 4 or 5 ovenproof dishes.
Sprinkle with remaining cheese. Bake 30 minutes or until heated through.
Serve with fresh Italian or French bread.
Can be mixed ahead and baked when needed.