Not to be snarky, but the recipe is pretty much in the OP, innit? It’s just a tostada, right? (Did Pizza Hut serve it on a fried tortilla, or on pizza crust?)
I make tostadas at home when I’m feeling lazy. Fry up some tortillas, top with refried beans, lettuce, sour cream, cheese, whatever. Dunno what spices Pizza Hut used, but I imagine it wasn’t far off from plain old adobo spice you can get in the supermarket.
Godfather’s Pizza, a (mostly) national chain, makes a good taco pizza, although I haven’t had one lately (and now I’m hungry for one). Do you have one in your area?
From their web site, no beans but: Beef, Onions, Lettuce, Tomatoes, Taco Sauce, Cheddar Cheese and Mozzarella Cheese. Their Super Taco Pizza is: Beef, Black Olives, Onions, Lettuce, Tomatoes, Sour Cream, Taco Sauce, Cheddar Cheese & Mozzarella Cheese.
Anyhow, in the Quad Cities area of Western Illinois/Eastern Iowa, there is a local chain called Happy Joe’s, partly famous for their taco pizza (containing refried beans, but also crushed tortilla chips on top.) Also, check out their Happy Joe’s Special, which is canadian bacon and sauerkraut.
Taco pizza is our go-to dish for using up leftovers from taco night. I use a pre-made shell. Bottom layer is refried beans, then taco sauce, then the taco meat, then cheese. I use the same “Mexican blend” cheese that we use for tacos, but shred ched or similar cheese will work. On top of the cheese put some black olives, chopped onion and tomato. Bake according to directions for the pre-made shells (for mine, 425° for about 10-12 minutes). Remove pizza from oven, let it cool for a couple minutes, slice, then top with shredded lettuce. (I think it’s easier to slice without the lettuce on top.)
Also, Papa Murphy’s has a taco pizza but it’s seasonal, they only have it around Cinco De Mayo.
I don’t remember the Hut having anything even resembling PIZZA. Other than being round, and approximately the right color.
My favorite local pizza place (before we moved) would put out 15-20 different pizzas at lunch time, one of them was a taco pizza. I never tried it (not too keen on the idea of hot lettuce), and I don’t think there were beans on it, but otherwise it looked pretty good.
When we lived in Tucson many of the local Mexican places had something called a cheese crisp, basically a pizza made with a giant tortilla, cheese, and your choice of various Mexican toppings. Mmmm…
The Pizza Hut down the street from me still has them, I’m in Indiana. Mom and I just got one for lunch the other day. It was basically as you described, pizza crust, beans, cheese, tomatoes, and lettuce, oh and Doritos for some crunch on top. Add taco sauce and sour cream and yum…