Hazırlanışı
1Preheat the oven to 350 degrees F (175 degrees C).
2Make the filling: Melt butter in a large skillet over medium heat. Add onion and sauté until translucent, about 5 minutes. Remove from the heat. Stir crabmeat, shrimp, and 1/2 of the Colby cheese into the skillet.
3Arrange a large spoonful of filling across the center of each tortilla, then roll tortillas around filling. Place enchiladas, seam-side down, into a 9x13-inch baking dish.