01 - Preheat the oven to 425°F.
02 - Toss sweet potato cubes with 1 tbsp olive oil, 1/2 tsp salt, and 1/4 tsp pepper. Spread on a baking sheet.
03 - Combine chicken breast with 1 tbsp olive oil, smoked paprika, garlic powder, 1/2 tsp salt, and 1/4 tsp pepper. Place on a second baking sheet.
04 - Roast sweet potatoes and chicken for 25-30 minutes, flipping halfway, until potatoes are tender and chicken reaches internal temperature of 165°F.
05 - Let chicken rest for 5 minutes, then slice.
06 - While roasting, dice bell pepper, halve cherry tomatoes, rinse spinach, and slice avocado.
07 - Mix Greek yogurt, lemon juice, cumin, salt, and pepper in a small bowl until smooth.
08 - Divide spinach between four containers. Top with roasted sweet potatoes, sliced chicken, bell pepper, cherry tomatoes, and avocado. Drizzle with sauce and garnish with cilantro and lime wedges.
09 - Seal containers and refrigerate for up to 4 days. Add avocado and sauce just before serving for best freshness.