Sausage veg one pot

Name: Sausage & veg one-pot
Ingredients: 1 tbsp olive oil; 12 good-quality sausages; 1 small onion, chopped; 1 fennel bulb, quartered, then sliced; 2 garlic cloves, crushed; ½ red chilli, finely chopped; 2 tsp fennel seed; 2 tbsp plain flour; 150ml white wine; 500ml chicken stock; 200g pack green bean, halved; 300g broad bean, double podded (unpodded weight); 300g pea; 200g pot half-fat crème fraîche; zest 1 lemon, juice of ½; handful parsley, chopped; handful basil, chopped; ½ red chilli, finely chopped, to serve; crusty bread, to serve