Prepare all of the ingredients. Preheat oven to 350deg.
In large saute pan over medium-heat, add ground beef and chorizo. Crumble and cook until no longer pink.
In a saucepan over medium heat, add butter and garlic powder. Once melted, whisk in flour and cook for 2 minutes. Whisk in broth and cook for 3 minutes. Whisk in heavy cream and cook for 2 minutes. Stir in chopped chipotle peppers and cook for 2 minutes. Stir in cheese and cook until fully melted. Remove from heat.
Ladle enough sauce into bottom of 13x9 baking dish. Fill tortilla with 2 spoonfuls of beef mixture and 1 tablespoon of cheese. Roll up tortilla and place lengthwise in baking dish. Repeat with 5 more tortillas. Repeat process with second 13x9 baking dish and 6 more tortillas. Divide remaining sauce over each baking dish. Sprinkle with remaining cheese.
Place in oven and bake for 30 minutes. Let sit for at least ten minutes before serving.