Recipe for Freezer-raid springtime risotto by Jamie Oliver

Ingredients

• 1 litre vegetable stock , (a stock cube is fine)
• 1 onion
• 1 stick of celery
• olive oil
• 2 knobs of unsalted butter
• 300 g risotto rice
• 125 ml white wine , optional
• 300 g mixed frozen green veg, such as spinach, green beans and peas
• 60 g freshly grated Parmesan cheese , plus extra for sprinkling
• extra virgin olive oil
• 1 lemon , optional