Meatloaf Club Sandwiches

Name: Meatloaf Club Sandwiches
Ingredients: 10 slices of bacon, 2 slices coarsely chopped; 2 garlic cloves; 3 tablespoons dry bread crumbs; 3 tablespoons freshly grated Parmesan cheese; 3 tablespoons milk; 1 large egg; 1/2 teaspoon thyme; 1/4 teaspoon finely chopped rosemary; 1/2 teaspoon hot sauce; Kosher salt and freshly ground pepper; 3/4 pound lean ground sirloin; 12 slices white or sourdough bread; 2 tablespoons extra-virgin olive oil; 1/4 cup mayonnaise; 1 chipotle chile in adobo sauce, stemmed and chopped; 2 beefsteak tomatoes, thinly sliced; 4 Bibb or romaine lettuce leaves; Cornichons and mustard, for serving