Simple sausage traybake - Good Food Middle East

Ingredients

• 1 red onion , cut into wedges
• 4 new potatoes , thinly sliced
• 6 canned or jarred artichokes , halved
• 100g cherry tomatoes
• 4 spring onions , halved lengthways
• 2 pork sausages , cut into chunks
• 1 tsp fennel seeds
• 1 small lemon , cut into wedges
• ½ tbsp olive oil
• 400g can flageolet or butter beans , drained and rinsed
• 150ml low-salt vegetable stock
• 2 tbsp fresh pesto
• crusty bread , to serve (optional)