1. Toss shrimp with 2 tbsp olive oil, salt, and pepper in a medium bowl.2. Sear shrimp in a hot cast-iron skillet for 2-3 minutes per side until opaque and pinkish-white.3. Remove shrimp from skillet and set aside to cool.4. Combine diced tomatoes, minced garlic, chopped basil, balsamic vinegar, salt, and black pepper in a large bowl.5. Toss seared shrimp into the tomato mixture.6. Plate and serve.
To prevent overcooking the shrimp, keep a close eye on its color during cooking. Once the shrimp turns opaque in the center and changes to a pinkish-white color, it's time to remove it from the skillet and let it cool.