A colorful, gluten, grain, and dairy free meal! To keep this meal low stress you can prepare the sauce in advance and be sure to follow the directions below and prep all veggies so they are ready to go when needed.
Place 6 cups water and 1/3 cup sea salt in a large bowl and stir
Prep veggies. When water boils, add potatoes and cook just until soft, but still firm. Remove from water and set aside. While potatoes cook, make sauce
Combine all the ingredients in a food processor or blender, and process for 30 seconds. Scrape down the sides rubber spatula, and process for 30 seconds longer. If needed, thin with a little olive oil. Store in an airtight container in the refrigerator for up to 1 week.
Place prepared onions into a large bowl, drizzle lightly with olive oil and toss with a little salt and pepper. Pour onions into grill pan. In same bowl used to prepare onions, add boiled potatoes, corn, and squash. Drizzle with olive oil, sprinkle with sea salt and pepper. Set aside.