Step 1

Heat oven to 400°F. In small bowl, mix melted butter and 1/2 teaspoon of the garlic powder. Brush half of the butter mixture in bottom of 12-inch cast-iron skillet or other oven-safe skillet.

Step 2

Unroll pizza dough into skillet; press in bottom and firmly press dough evenly in skillet and about 1 inch up sides. Brush top with remaining melted butter mixture. Place mozzarella cheese slices onto dough, all the way to edges of skillet, slightly up sides and overlapping as necessary.

Step 3

In medium bowl, mix spinach, onion, 1/2 teaspoon of the basil leaves and remaining 1/2 teaspoon garlic powder. Spread evenly on top of cheese layer. Top with mushrooms and spoonfuls of crushed tomatoes, spreading to cover. Sprinkle with shredded cheddar and mozzarella cheeses; arrange tomato slices on top.

Step 4

In small bowl, mix grated Romano cheese and remaining 1/2 teaspoon basil; sprinkle on top of shredded cheese layer.

Step 5

Bake 20 to 25 minutes or until crust is golden brown and cheese is melted. Let stand 10 minutes before cutting to serve.