Easy salmon traybake recipe

Ingredients

• 2 red onions, cut into wedges
• 2 red peppers, sliced into strips
• 1 yellow pepper, sliced into strips
• 1 courgette, halved lengthways and thickly sliced
• 1 garlic bulb, halved across the middle
• 2 medium tomatoes, halved
• 3 tbsp olive oil, plus extra to drizzle
• 270g cherry tomatoes on the vine
• 4 good-quality sustainable salmon fillets (about 150g each)
• Squeeze of lemon juice
• Handful of fresh basil leaves