Line a rimmed baking sheet with non-stick foil, and place the 8 strips of bacon on the sheet, making sure they do not touch.
Place in the oven and bake for 15-20 minutes.
When the bacon is almost done, prepare the tortillas by first softening them in the microwave (wrap them in a damp paper towel and microwave about 20-30 seconds). This step is important, otherwise your tortillas will crack when you try to roll them up!
Spread 1/2 wedge of the creamy Swiss cheese on each tortilla.
Divide the shredded cheddar amongst the 8 tortillas and sprinkle on top of the Swiss cheese.
Remove the bacon from the oven and reset the temperature to 375 degrees F (190 degrees C).
Carefully handling the hot bacon, place one strip on each tortilla, to the side of the center, layer on about 8-10 spinach leaves, and roll them up. Place the tortillas on another baking sheet, seam side down.
Bake for 15 minutes, until the tortillas become crispy.
Nutrition information is approximate. Your results may be different due to different brands/products and measuring differences.