2Heat the olive oil in a large skillet over medium-high heat.
Add the ground beef to the skillet and cook until browned, breaking it apart with a spoon as it cooks.
Once the beef is fully cooked, drain any excess fat.
Warm the flour tortillas in a separate skillet or microwave until they are soft and pliable.
To assemble the chalupas, place a portion of the cooked ground beef onto each tortilla.
Top the beef with shredded lettuce, diced tomatoes, shredded cheddar cheese, a dollop of sour cream, and a spoonful of salsa.
Fold the tortillas in half to enclose the filling.
Serve immediately and enjoy your delicious Beef Chalupas!