Skillet Pizza Dip Countdown Clock

Name: Skillet Pizza Dip Countdown Clock
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 1 Pillsbury Classic Pizza Dough; 3 sticks string cheese; 1 egg whisked with 1 teaspoon water; 1 (8-ounce) block cream cheese (softened); 1/2 cup shredded Parmesan cheese; 1 1/2 cups shredded mozzarella cheese (divided); 1/2 cup ricotta cheese; pinch of salt; 1 cup pizza sauce; 5 slices cooked bacon (crumbled); 1 cup mini pepperoni; 1 block (an 8-ounce block) mozzarella cheese