Arrange the sliced vegetables (zucchini, bell peppers, cherry tomatoes, and onion) in a baking dish. Drizzle with olive oil, sprinkle with thyme, salt, and black pepper, and toss to combine.
Place the sea bass fillets on top of the vegetables. Drizzle with olive oil, sprinkle with garlic, oregano, salt, and black pepper, and arrange lemon slices over the fillets.
Cover the dish with aluminum foil and bake for 20 minutes. Remove the foil and bake for an additional 5 minutes to lightly brown the fish.
Serve hot, garnished with fresh herbs if desired.
NUTRITION FACTS (Per Serving)
Calories: 280 kcalCarbs: 8 gFat: 12 gProtein: 30 g