We love soups of all types at the Dr. Yum Project, and this is a summer favorite! The idea for this recipe came from Love and Lemons. Watermelon is a great vehicle for incorporating lots of fresh vegetables, and the spice level can be adjusted as desired.
Add watermelon, garlic, basil, vinegar, olive oil, salt, pepper, and optional jalapeño pepper to blender. Add half of the diced cucumber, tomatoes, bell pepper, and chopped green onions, setting aside the other half of each. Blend until smooth. Pour blended mixture into a large bowl and stir in chopped vegetables. Chill overnight, or at least 4 hours. Serve with optional avocado and enjoy!