Preheat and prep: Heat the oven to 425°F (220°C). Line a large baking sheet with parchment for easy cleanup.
Peel and cube the sweet potatoes.
Roast the sweet potatoes: Toss sweet potatoes with 1 tablespoon olive oil, a big pinch of salt, and pepper. Spread in a single layer. Roast 25–30 minutes, flipping once, until tender with caramelized edges.
Start the chicken: While the potatoes roast, heat 1 tablespoon olive oil in a large skillet over medium-high heat.
Add the ground chicken, season with salt and pepper, and break it up with a spatula. Cook 4–6 minutes until mostly cooked through and lightly browned.
Add aromatics and spices: Stir in the diced onion and bell pepper. Cook 3–4 minutes until softened.
Add garlic, smoked paprika, cumin, chili powder, oregano, and red pepper flakes. Cook 1 minute until fragrant.
Optional richness: Stir in tomato paste and cook 1–2 minutes to caramelize slightly. If the pan is dry, add a splash of water to loosen any browned bits and coat the chicken.
Fold in greens: Add the chopped greens and cook 1–2 minutes until just wilted.
Taste and adjust salt, pepper, and heat levels.
Finish with acid: Squeeze in a little lime or lemon juice. This brightens everything and balances the sweetness of the potatoes.
Assemble: Divide roasted sweet potatoes among 4–5 containers. Top with the ground chicken mixture.
Garnish with cilantro or green onions if using.
Cool and store: Let containers cool uncovered for 15–20 minutes before sealing. This prevents steam from making the food soggy.