In medium bowl, place ground beef, egg, oregano, garlic, milk and cheese.
Wet the slice of bread with a little water and squeeze excess water out.
Place wet bread in bowl along with other ingredients and mix until thoroughly combined.
Putting on food service gloves to do the mixing helps, especially when the phone rings and well, that seems to happen as soon and I get my hands on the food.
Roll 2 tablespoon size meatballs and cook them in a skillet on medium until cooked through.
Spread out pizza dough onto pizza pan with corn meal sprinkled on it, so the dough doesn't stick.
Place 1/4 cup tomato sauce on top and spread evenly.
Spread Mozzarella cheese on top of sauce.
Mix the spaghetti with 1/4 cup sauce and add that to the top of the pizza. I use a fork to divide the spaghetti evenly around the pizza.
Cut 6 meatballs in half and place them onto pizza.
Brush tops of meatballs with the remaining tomato sauce.
Bake pizza in 450 degree oven for 10 minutes.
Slide pizza off pizza pan and bake directly on oven rack for 2-3 more minutes for bottom of pizza to crisp.