These super tasty Leftover Prime Rib Tostadas are filled with layers of delicious flavors from tender, perfectly roasted prime rib to refried beans, fresh lettuce, pico de gallo, queso, and crema! My tostadas are served in homemade tostada bowls that can be varied in sizes to serve your prime rib tostadas as either appetizers or part of a family meal!
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Instructions
Make Homemade Tostada Bowls
Using either corn tortillas (more commonly used for tostadas) or small flour tortillas, make the tostada shells. These can be baked in the oven until crisped. Preheat your oven to 375 degrees F (190 degrees C) and use one of the options below if making your own tostada bowls:A) Use muffin pans and fit the street taco size tortillas into the muffin cavities (you don't need to use cooking spray for this method). Fold the tortillas to fit nicely down into each muffin indent.B) Use ramekins that have been greased or sprayed with non-stick cooking spray. Fit the tortillas into each ramekin, folding as needed to make a bowl shape.C) Use oven-safe bowls turned upside down. lightly grease or spray the bottom of each bowl (where the tortillas will sit) with non-stick cooking spray. Fit the tortillas over the rounded bowl.D) Use tortilla shell molds and fit your tortillas to the mold shape. Do not grease or coat with non-stick cooking spray.Bake the tortillas for 12-15 minutes, or until golden brown and crispy. Remove from the oven and allow the baked tostada bowls to cool for 5 minutes in whichever baking dish you used. *This will help them to hold their shape.Allow the tostada bowls to cool completely before filling.
Assemble the Prime Rib Tostadas
Reduce your oven temperature to 250 degrees F (121 degrees C) and use a sheet of aluminum foil or a small baking dish to hold the sliced prime rib leftovers. Add a small drizzle of beef broth to keep the leftovers moist during heating, then heat the meat until warmed through, about 10 minutes.Heat the refried beans in a small saucepan on the stovetop over medium-low heat with a tablespoon of water. Stir occasionally until heated.
Place a portion of the warm refried beans into the tostada bowl and top it with shredded lettuce, sliced prime rib, pico de gallo, queso fresco or cheese, and sour cream if desired.