Preheat oven to 400°F (200°C).
Wash and dry the sweet potatoes.
Rub with oil and sprinkle with salt.
Place on a baking tray and bake for 45–60 minutes, until soft and tender.
Heat a skillet over medium heat. Add oil once hot.
Add the minced beef and cook for 4–5 minutes, breaking it apart.
Add diced onion and cook until softened.
Stir in garlic and jalapeño add,
Cumin, smoked paprika, salt & black pepper
Stir in tomato paste and cook for 1–2 minutes. Add some water and cook until it is fully cooked. Then, add the spinach and cook until it wilts.
Slice the baked sweet potatoes open lengthwise. Add ½ tsp butter in each potato. Lightly mash the inside with a fork. Spoon the beef filling into each potato.
Top generously with shredded cheddar cheese. Return to oven for 10-15 minutes until the cheese is melted and bubbly.
Top with sour cream or Greek yogurt, green onions or cilantro. Serve warm
