Heat the oven to 400 degrees. Cover a baking sheet with parchment paper (or aluminum foil lightly spritzed with nonstick spray.)
Arrange the tortilla chips on the prepared baking sheet.
Sprinkle the black beans, plant-based protein crumbles, chopped green onions and cheese on top of the tortilla chips.
Put the baking sheet in the oven for 10 to 15 minutes, until the cheese is bubbling and the chips have turned slightly light brown.
Sprinkle chopped tomatoes (and avocadoes) over the top if you wish.
Serve with mashed avocado, Greek yogurt and salsa for dipping.