Chicken Enchiladas

Heat oil in a medium saucepan over medium-low heat. Add onion, garlic, jalapeno, and chili powder; cook until onion is translucent, 8 minutes.

Add tomatoes and 1/2 cup water to saucepan; season with salt and pepper. Bring to a boil. Reduce heat to medium-low; cook, gently crushing tomatoes with a wooden spoon, until sauce is thickened, 15 to 20 minutes. Add lime juice. Let sauce cool completely before storing.

Heat a skillet over medium-high heat; warm each tortilla, about 10 seconds per side. Divide chicken, 3 cups cheese, and pickled jalapenos among tortillas; roll tightly. Place seam sides down in a 9-by-13-inch baking dish.

When ready to bake, preheat oven to 450 degrees. Top with sauce and remaining cup cheese. Bake until cheese is melted and tortillas heated through, 6 minutes or longer if refrigerated. For a crisper top, broil 1 to 2 minutes more.