01 - Preheat oven to 425°F for roasting sweet potatoes.
02 - Toss diced sweet potatoes with 1 tbsp olive oil, smoked paprika, and a pinch of salt and pepper. Spread on a baking sheet and roast for 20-25 minutes, flipping halfway, until golden and tender.
03 - While sweet potatoes roast, heat remaining 1 tbsp olive oil in a large skillet over medium heat. Add sliced onions and diced bell pepper; sauté for 4-5 minutes until softened.
04 - Add ground beef to the skillet along with cumin, garlic powder, chili powder, salt, and pepper. Cook, breaking up the meat with a spoon, until browned and fully cooked, about 7 minutes. Drain excess fat if necessary.
05 - Stir baby spinach into the beef mixture and cook for 1-2 minutes until just wilted.
06 - Divide roasted sweet potatoes among four bowls. Top with beef and vegetable mixture, sliced avocado, and desired toppings including fresh cilantro, Greek yogurt, and lime wedges.
07 - Serve immediately while components are still warm.