Roasted Fennel and Red Onion Salmon

Ingredients

• 2 small fennel bulbs, cut into 1/2-inch wedges
• 1 large red onion, cut into 1/2-inch wedges
• 6 cloves garlic, smashed
• 1 cup cherry or grape tomatoes
• 1/2 bunch fresh thyme sprigs
• 1 teaspoon kosher salt
• 1/2 teaspoon freshly ground black pepper
• 2 teaspoons extra-virgin olive oil
• 4 6-ounce salmon fillets, skinned
• 1 lemon, halved
• about 3 cups cooked rice (optional)