Preheat the oven to 400°F (200°C).

In a large skillet, heat olive oil over medium heat. Add the diced onion, garlic, and bell pepper. Sauté until softened, about 5 minutes.

Add the sliced chicken sausage to the skillet and cook until browned, about 5-7 minutes.

In a large mixing bowl, combine the diced sweet potatoes, broccoli florets, smoked paprika, oregano, salt, and black pepper. Mix well.

Add the sausage mixture to the bowl with the sweet potatoes and broccoli. Pour in the chicken broth and stir to combine all ingredients.

Transfer the mixture to a greased 9x13 inch casserole dish. Spread evenly.

Top the casserole with shredded cheddar cheese.

Cover the dish with aluminum foil and bake for 30 minutes.

Remove the foil and bake for an additional 15-20 minutes, or until the sweet potatoes are tender and the cheese is bubbly and golden.

Remove from the oven and let cool for a few minutes. Garnish with chopped parsley before serving.