Cook the penne pasta according to package instructions.
Heat olive oil in a large skillet over medium heat.
Cook the diced chicken in the skillet until golden and cooked through, about 5-7 minutes.
Add the chopped onion, garlic, and bell peppers to the skillet, cooking until soft.
Stir in the shrimp and cook until they turn pink and opaque, about 3-4 minutes.
Add the heavy cream, curry powder, paprika, salt, and pepper to the skillet.
Mix in the cooked penne pasta, ensuring it is well-coated in the sauce.
Garnish with chopped green onions before serving.