Preheat the grill to medium-high heat. Grill watermelon slices for about 2-3 minutes on each side until grill marks appear.
Remove watermelon from the grill and cut into chunks.
In a blender, combine grilled watermelon, cucumber, bell pepper, red onion, olive oil, lime juice, and salt. Blend until smooth.
For the lime crema, mix Greek yogurt, lime zest, honey, and a pinch of salt in a mixing bowl until well combined.
Serve the gazpacho chilled, drizzled with lime crema.
Notes
For extra flavor, try adding a pinch of chili powder to the gazpacho.Serve chilled for a truly refreshing experience on hot days.Feel free to substitute basil with mint for a different flavor profile.