Steps
1. Preheat oven to 350°F.
2. Heat olive oil in a large skillet over medium heat. Add onion and garlic, and sauté until fragrant.
3. Add red pepper and potato slices and sauté for 3 minutes.
4. Add white wine and vegetable stock, bring to a simmer, and cook for 5 minutes.
5. Place the fish fillet and asparagus in the skillet, and season with salt and pepper. Simmer for 2 minutes.
6. Transfer the skillet to the oven and bake for 10 minutes, or until fish is cooked through.
7. Serve warm.