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. Cover with a second tortilla if desired.
03 -
Gently press and cook until the bottom is golden brown and cheese begins to melt, about 2.5 minutes. Carefully flip and repeat on the opposite side until both surfaces are crisp and cheese is fully melted, approximately 5 minutes total.
04 -
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.
05 -
Arrange quesadilla wedges on a serving plate. Top generously with shredded lettuce and diced tomatoes. Offer additional ranch dressing on the side as desired.