Step 1

Heat oven to 425 degrees F.

Step 2

Heat a large pan over medium heat and add olive oil and grated sweet potato.  Cook for about 2 minutes and then add grated zucchini, salt, pepper and spices.  Stir together and cook until vegetables are tender, about 5 minutes.

Step 3

Lay tostada shells on a large baking sheet and spread each with about 1/4 cup refried beans, 1/6 of the veggie mixture and top with 2 tablespoons shredded cheese.

Step 4

Bake tostadas until heated through and cheese is melted, about 5 minutes.

Step 5

Add your favorite toppings and enjoy!