With the rack in the highest position, preheat the oven’s broiler.
On a baking sheet, combine the tomatoes, onion, garlic, thyme, and oil. Season with salt and pepper.
Bake for about 10 minutes or until the tomatoes begin to brown. Lightly oil the tilapia fillets. Season with salt and pepper. Place them, side-by-side, on the vegetables. Continue baking for 5 minutes or until the fish is cooked. Sprinkle with the chives. Serve with brown rice.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.