Preparation

1. Preheat oven to 400 F. Line a baking sheet with parchment paper.
2. Place fish fillets on one side of the baking sheet, skinned side down. Season the fish with a sprinkle each of paprika, salt (if desired) and pepper. In a small bowl, stir together 1 teaspoon of the olive oil, the lemon zest, lemon juice, garlic, and thyme. Spoon this onto the fish fillets and smear to coat well with the lemon garlic mixture.
3. On the other side of the sheet pan, place the asparagus in a single layer, and the onions and peppers (which can be mixed together) in another place on the sheet. Drizzle the remaining olive oil over the vegetables. Season with salt and pepper as desired, then toss each to coat well with the seasoning.
4. Place sheet on center rack in oven for 8 minutes. Stir vegetables to promote more even cooking. Continue to cook another 5-8 minutes or until the vegetables are tender and the fish is opaque and flakes easily when pulled apart with a fork. Serve with fresh lemon wedge and sprinkle with parsley, if desired. Roasted or mashed potatoes, rice, or cauliflower rice make excellent side dishes to this simply delicious one-pan dinner!