Saute 1 crushed clove of garlic and sliced onion til onion is soft. Add in chopped mushrooms til cooked. Remove from pan, set aside.
1tbsp of oil in same pan, then stir in 1c arborio rice and cook 1-2 minutes. Put veggies back in pan with 250g peeled and grated butternut squash and 1c hot water or veg stock. Bring to the boil, reduce heat, leave to simmer, stirring occasionally. Add another cup of liquid and when that's absorbed, 1/2 a cup. When that liquid's gone, test rice; stir/add more liquid as necessary.
Soon as the rice is done, add 1 tbsp pesto (I've substituted fresh basil successfully), 2-3 tbsp grated parmesan, 1/2-1c fresh or frozen peas, salt and pepper to taste.
I love this dinner, but reading it strikes me how very high-GI it is, wonder if I could add some cooked chicken breast along the way to help with that...