Pepperoni dip

1 packet cream cheese
2 cups shredded Mozzarella cheese
pizza sauce
diced pepperoni

Soften the cream cheese. You can mix in some garlic, red pepper, Italian seasoning, whatever at this point.
Spread the cream cheese on the bottom of a Pyrex pie plate
Spread 1 cup shredded cheese on top
Spread pizza sauce on top of that (not too much)
Spread the rest of the shredded cheese
Spread the pepperoni on top. If you use too much, it tends to get greasy.
Bake at 350 or so until the top just begins to brown and it is bubbly.
I usually serve with tostitos scoops.

Really quick and easy to do, very forgiving and is popular with people not on a diet.

You can use chili or taco meat instead of pizza sauce and pepper jack/cheddar instead of mozzarella. Mix some hot sauce/taco seasoning in with the cream cheese and spread Jalapeños on top.