Heat a large skillet over medium-high heat. Add chopped bacon and cook until crisp. Remove from the pan and drain on paper towels. Pour some of the bacon fat from the pan (reserving a little). Add ground beef to the same pan, and cook ground beef while breaking it up into chunks with a spatula or spoon. Cook until the beef is fully cooked. Drain off any excess grease. Add the bacon back into the pan and season with mixture with salt and pepper to taste

Sprinkle a layer of cheese evenly over the entire tortilla. On half of the tortilla sprinkle a layer of the meat mixture.

Cook until the cheese has melted and the bottom has browned. Using a spatula fold the tortilla in half and press down the edges gently. Remove from the pan. Repeat with remaining tortillas. Slice each quesadilla into three triangles.