Crockpot Chuck Roast Tinga Tacos

Name: Crockpot Chuck Roast Tinga Tacos
Prep time: 15 min
Cook time: 3 h
Total time: 3 h 15 min
Cuisine: Mexican
Ingredients: 2 yellow onions sliced; 2 teaspoons garlic powder; 1 teaspoon chipotle chile powder; 2 teaspoons dried oregano; 2 teaspoons ground cumin; 1 teaspoon salt; 1 4 pound chuck roast, quartered; 1 1/2 cups red enchilada sauce; 2-3 chipotle peppers in adobo, chopped; 2 tablespoons salted butter; 12 hard or soft taco shells, warmed; cilantro, green onion, avocado, and crumbled cotija cheese, for serving; 1/2 cup mayo or plain Greek yogurt; 1 cup fresh cilantro; 1 jalapeno, seeded if desired; 1/2 cup crumbled cotija cheese; 1 clove garlic, chopped; 2 tablespoons lime juice; 2 teaspoons honey