Rib Eye Steaks with Basil Butter and Sliced Tomatoes

Name: Rib-Eye Steaks with Basil Butter and Sliced Tomatoes
Ingredients: 1/2 cup (1 stick) unsalted butter, softened; 1 small shallot; 1 garlic clove, peeled; 1/2 teaspoon kosher salt, plus more for sprinkling; 1/4 teaspoon freshly ground black pepper; 1 cup basil leaves, loosely packed; 2 1/2 pounds (2-3 steaks, depending on size) rib-eye steak; 2 tablespoons olive oil, plus more for drizzling; 3 large tomatoes, preferably heirloom; 4 slices thick rustic bread