Butternut Squash and Mushroom Risotto without onion

5 cups broth vegetable broth or low salt chicken broth 1 1/2 tablespoons olive oil or other vegetable oil 3 medium shallots thinly sliced * 3 cups butternut[...]

2 medium butternut squash , halved and peeled cooking spray 1 teaspoon olive oil 5 garlic cloves , chopped 1 lb white button mushrooms , cleaned and thinly[...]