Creating Mediterranean Baked Fish is simple if you follow these easy steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C) to get started on the baking process.
2. Prepare Baking Dish: Lightly grease a large baking dish with olive oil.
3. Arrange Vegetables: Spread sliced onion, bell pepper, and cherry tomatoes evenly in the baking dish.
4. Season Fish: Place the fish fillets on top of the vegetables. Drizzle with olive oil and season with oregano, thyme, salt, and pepper.
5. Add Aromatics: Scatter minced garlic and sliced olives over the fish for added flavor.
6. Add Lemon Slices: Lay lemon slices on top of the fish to infuse it with citrusy goodness.
7. Bake: Place the baking dish in the oven and bake for 25-30 minutes or until the fish is flaky and cooked through.
8. Check for Doneness: Ensure internal temperature reaches 145°F (63°C) for safe consumption.
9. Garnish: Once done, sprinkle fresh parsley on top for a pop of color and freshness.
10. Serve: Allow to cool slightly and serve warm, either directly from the dish or plated elegantly.

These steps will guide you in creating this incredible Mediterranean Baked Fish effortlessly. Each element comes together to produce a dish that smells just as good as it tastes.