Sirloin Burgers on Bed of Lettuce with Grilled Shrimp and Horseradish Chili Sauce

Name: Sirloin Burgers on Bed of Lettuce with Grilled Shrimp and Horseradish Chili Sauce
Ingredients: 1 1/2 pounds ground sirloin; 1 large shallot, finely chopped; 2 tablespoons fresh thyme leaves, chopped; 1 tablespoon Worcestershire sauce; 1 teaspoon smoked Hungarian paprika or 2 teaspoons ground cumin – eyeball it; 2 teaspoons grill seasoning (recommended: Montreal Steak Seasoning by McCormick) or coarse salt and black pepper; 8 jumbo peeled, deveined shrimp, 6 to 8 count; Extra-virgin olive oil, for drizzling; 1 tablespoon chopped parsley leaves; 1 lemon, zested; 2 cloves garlic, chopped; 2 rounded tablespoons prepared horseradish; 1 cup chili sauce; 1/2 head iceberg lettuce, cored and quartered