Steps
1. Preheat a grill or grill pan over medium-high heat.
2. Brush the watermelon slice with olive oil on both sides.
3. Season the watermelon with salt, pepper, paprika, and garlic powder.
4. Grill the watermelon slice for about 2-3 minutes on each side until grill marks appear.
5. Remove from the grill and let it rest for a minute before serving.