Divide your loaf in half- let rise about an hour. Then roll out 1/2 to about 1/4 in. thick- lay in a 9x13 pan -push it up the sides of pan. Put pan in a 350 degree oven for appr. 15 min, you want the crust just done- not over done- it will bubble up, just pop the bubbles with a knife.
Brown ground beef with salt, pepper, season salt- drain, and set aside. Brown the sausage, drain and set aside. Dice your onions (what ever thickness you desire) while your meat is browning.
Put enough pizza sauce to cover the bottom of crust, then a thin layer of ground beef, then a layer of swiss (I get the sliced and just cover the whole pan 1 layer thick of cheese),another layer of sauce, then put your sausage, then a layer of montery jack, then a layer of mushrooms,a little more sauce, then a mixture of the onions, then mozzerella, you can roll out your 2nd crust and put it on top (make this crust a little thinner)or stop here and use the other dough for a 2nd pizza- either way is super yummy!-
Put into a 350 degree oven for at least 30 min. until top crust is done- or it is well heated through if you don't use the top crust, then add a little more mozzerella now that it has cooked down then cook an additional 10 min. or until cheese is melted and bubbly- let sit about 10 min. then cut into squares and serve!
My youngest son and I aren't into the onions and mushrooms, so we make our own without them- we just use extra cheese and add pepperoni!