How To Make Tostadas. Season the beef with garlic powder, taco seasoning and salt, to taste. Lightly spray both sides tortillas with cooking spray and place in a single layer on prepared baking sheets.

Season the beef with garlic powder, taco seasoning and salt, to taste. Try making your own crispy tostadas at home—you’ll find they’re so much better. Now, fry two tsp of pork fat with one and a half cups of mashed beans and three tsp of finely sliced onions to get a solid mixture.