While the pasta cooks, heat a large skillet over medium high heat. Add the frozen squash plus 2 tablespoons water. Cover and cook, stirring occasionally to help it defrost.
In the meantime, heat the oil in a small skillet over medium heat. Add the garlic and cook until soft, about 4-5 minutes.
Once the squash is heated through, stir in the cooked garlic. Remove from pan and allow to cool for about 10 minutes.
Add the squash, milk and salt and pepper to a blender or food processor. Blend until combined. Toss with the pasta and serve!
Recipe Notes
Add some grated parmesan cheese if you like (highly recommended)!