Shrimp: Add garlic, olive oil, and salt to a bowl. Add the shrimp and stir to combine. Let marinate for 10-15 minutes. Lay shrimps on the hot grill and cook until about 2 minutes per side

Salad: Add all the ingredients except for shrimps and tomatoes into a large bowl. Toss to coat well, then transfer to a serving bowl. Top the salad with tomatoes and the grilled shrimp.