Make the pizza dough: Mix yeast with warm water and set aside for 8 to 10 minutes. Mix flour, salt, and olive oil in a mixing bowl. With speed on low, drizzle in yeast/water mixture. Allow to mix until totally combined. Cover bowl with a towel and set bowl in a warm, draft-free place. Allow to rise for 1 to 2 hours.

Pour black beans into a saucepan. Add seasonings to taste and heat up beans over medium-low heat. Use a potato masher to mash the beans to desired texture. Continue cooking/heating beans over medium-low heat, stirring occasionally, until no longer runny (should be the texture of refried beans. Set aside.

In a small skillet, heat canola oil over medium heat. When hot enough to fry, drop in the tortilla strips in batches, frying quickly and removing from oil with a fork when crisp–about 30 to 45 seconds per batch. Transfer to a paper towel-lined plate. Set aside.

Place oven rack in the bottom position in the oven. Preheat oven to 500 degrees.

Remove half the pizza dough from the bowl. Place remaining half in a large plastic bag and refrigerate, saving for another use. With hands, spread pizza dough on an oiled baking sheet, making sure it’s relatively thin. Spread layer of refried beans all over pizza crust. Sprinkle mixed grated cheeses over the top. Place pan in the oven (in the bottom half of the oven) and bake for 9 to 12 minutes. Watch it to make sure crust doesn’t burn.

Remove pizza from oven. Sprinkle on shredded lettuce, diced tomatoes, and cilantro leaves.

Mix together sour cream and hot sauce, adding enough hot sauce to make the mixture pourable. With a spoon (or you can put it in a pastry bag) drizzle mixture over finished pizza.

Sprinkle with tortilla strips. Cut into squares and serve immediately with good quality salsa.