Slow Cooker Shredded Beef Tacos

Name: Slow Cooker Shredded Beef Tacos
Prep time: 15 min
Total time: 15 min
Cuisine: American, Mexican, Latin American
Ingredients: 2 Tbsp. olive oil, divided; 2 pounds beef (I used a boneless chuck roast); 2 tsp. chili powder; 1 tsp. cumin; 1/2 tsp. smoked paprika; 1 cup beef stock; 2 Tbsp. tomato paste; 1 chipotle pepper in adobo sauce, minced (if you want extra flavor/heat, add an extra pepper); 1 small white onion, diced; 5 cloves garlic, minced; Flour tortillas; guacamole or sliced avocado; salsa; Mexican rice; grated cheese; fresh lettuce; tomato; onion; cilantro; lime wedges