In Mexico, a tostada is a small crisp tortilla covered with a topping and served as an hors d'oeuvre.

Chef's tip
The tortilla should be fried in hot oil for a few seconds to become a crispy chip that can be picked up with the fingers. Add the topping at the last minute so the tostada doesn't get soggy.

1. Sauté the ground beef with the minced onion for a few minutes in a little olive oil in a skillet; 
2. top with Mexican salsa; mix and heat through; 
3. fry the tortillas for a few seconds until golden and crisp; 
4. drain on paper towels; transfer to a plate; 
5. top with the beef-salsa mixture, a few strips of lettuce and some grated cheese.