Step 1

Position rack in upper third of oven; preheat to 400 degrees F. Line a large rimmed baking sheet with parchment paper.

Step 2

Beat eggs in a medium bowl. Mix in masa (or cornmeal), scallions, water, chili powder, garlic powder and salt. Spread evenly on the prepared baking sheet into a 9-by-11-inch oval.

Step 3

Bake the crust until lightly browned, about 10 minutes. Spread beans on the crust and sprinkle with cheese. Bake until the cheese is melted, about 5 minutes more.

Step 4

Top the pizza with romaine, avocado, onion, pico de gallo (or salsa) and cilantro.