4 lg. baking potatoes
1 c. sour cream
8 oz. shredded Mozzarella cheese
8 oz. shredded cheddar cheese
8 oz. finely chopped mushrooms (opt.)
8 oz. bacon bits
Butter to taste

Wrap potatoes in aluminum foil and bake at 350 degrees for 45 to 60 minutes. Unwrap and half potatoes. Spoon potato out of skin. Combine potato and remaining ingredients in large bowl. Spoon mixture in potato skins. Rewrap and bake additional 20 to 25 minutes.