Grate the cauliflower florets using a food processor until it resembles rice.
Steam the grated cauliflower for approximately 5 minutes, then let it cool.
In a bowl, combine the cooled cauliflower, egg, garlic powder, onion powder, cumin, and salt. Mix well.
Spread the mixture into thin circles on a baking sheet, about 1/2 inch thick.
Bake for 15 minutes, then flip the tostadas and bake for an additional 5-10 minutes until golden.
Remove from oven and let cool slightly.
Top each tostada with cooked ground beef, diced tomatoes, avocado, and garnish with cilantro.
Serve immediately and enjoy your Whole30 Mexican Cauliflower Tostadas!
Notes
Use different toppings like avocado, salsa, or grilled chicken for variations.Tip: You can use store-bought Whole30 compliant salsa for convenience.Make sure to press the cauliflower mixture well to achieve a crispy base.