Coarsely grate tempeh. In large skillet, heat oil until shimmering. Add tempeh and sauté over medium-high heat, stirring often and breaking up any large pieces so tempeh is fully crumbled. Mixture should look like coarse ground beef. Stir in garlic, seasonings, and tomato sauce until evenly distributed. Simmer briefly to marry flavors. Remove from heat and transfer mixture to bowl.

Preheat oven to 375 F. Give each child a tortilla and allow them to brush it with a little oil and spread tempeh mixture over top. Have them add toppings (pepper, cherry tomatoes, olives, and mozzarella) as desired.

Transfer taco pizzas to baking sheet and bake until they are piping hot and cheese has melted. Remove and scatter with avocado and cilantro. Cool slightly and serve.