01 -
Heat unsalted butter in a non-stick skillet over medium heat until melted and foaming subsides.
02 -
Place flour tortilla in the skillet. Evenly distribute grated cheddar cheese, scatter crumbled bacon, and drizzle ranch dressing over the cheese.
03 -
Gently press and cook until the bottom is golden brown and cheese begins to melt, about 2.5 minutes.
04 -
Carefully flip and repeat on the opposite side until both surfaces are crisp and cheese is fully melted, approximately 5 minutes total.
05 -
Remove from skillet and set aside on a cutting board. Allow to rest for 1 minute to ensure easier slicing; cut into wedges using a sharp knife.
06 -
Arrange quesadilla wedges on a serving plate. Top generously with shredded lettuce and diced tomatoes. Offer additional ranch dressing on the side as desired.