Sizzling Shrimp Santorini

Name: Sizzling Shrimp Santorini
Ingredients: 1/4 cup extra-virgin olive oil; 1 white onion, chopped; 1/2 teaspoon Greek Seasoning, recipe follows; 1/2 teaspoon dried oregano; 5 medium tomatoes, blanched, peeled and chopped; Sea salt; 3 tablespoons finely chopped fresh flat-leaf parsley; 8 jumbo shrimp, peeled and deveined; 5 ounces Greek feta cheese, crumbled; 1/4 cup kalamata olives; Thick-crusted bread, for serving; 2 teaspoons dried oregano; 2 teaspoons dried parsley; 1 1/2 teaspoons garlic powder; 1 1/2 teaspoons onion powder; 1 teaspoon dried rosemary; 1/2 teaspoon freshly ground pepper; 1/2 teaspoon sea salt