Preheat the oven to 400°F (200°C).
Line a baking dish with parchment paper.
Place the fish fillets in the dish.
Drizzle olive oil over the fillets.
Sprinkle minced garlic, salt, and pepper on top.
Layer lemon slices on the fish.
Add the halved cherry tomatoes around the fish.
Bake in the preheated oven for 15-20 minutes.
Check for doneness; the fish should flake easily with a fork.
Garnish with fresh parsley before serving.