01 -
Preheat your oven to 475°F (245°C). Lightly grease an 18x13 inch sheet pan or rimmed baking sheet with cooking spray or oil.
02 -
In a large mixing bowl, combine the flour, powdered milk, sugar, yeast, and salt. Stir to mix evenly. Add the warm water and vegetable oil. Stir until a soft, sticky dough forms.
03 -
Using wet fingers or a spatula (the dough will be sticky), spread the dough evenly into the prepared sheet pan, pushing it all the way to the edges and corners.
04 -
Place the pan in the preheated oven and bake for 8-10 minutes, until the crust is just beginning to turn golden but not fully cooked. Remove from oven but keep the oven on.
05 -
While the crust is pre-baking, brown the Italian sausage and ground beef in a large skillet over medium heat. Season with salt and pepper. Break up any large chunks with a wooden spoon as it cooks. Drain excess fat and set aside.
06 -
In a medium saucepan, combine the tomato paste, water, olive oil, minced garlic, salt, black pepper, oregano, basil, and rosemary. Bring to a simmer over medium-low heat. Let simmer for 20-30 minutes, stirring occasionally, until slightly thickened. (For best flavor, make the sauce a day ahead and refrigerate overnight.)
07 -
Spread the pizza sauce evenly over the pre-baked crust, leaving a small border around the edges if desired. Sprinkle the cooked meat mixture evenly over the sauce. Top with the shredded mozzarella cheese, covering the entire pizza.
08 -
Return the pizza to the oven and bake for an additional 8-10 minutes, until the cheese is fully melted, bubbly, and beginning to turn golden in spots.
09 -
Remove the pizza from the oven and let it rest for 5 minutes. Using a pizza cutter or sharp knife, cut into squares (about 3-4 inches each). Serve warm and enjoy the nostalgic flavors of school lunch pizza!