Cafe Style Grilled Chicken Sandwiches

Step 1
Preheat grill to medium-high heat.

Step 2
Prick chicken breasts all over with a fork. Place chicken breasts, 1/4 cup olive oil, white wine vinegar, lemon juice, garlic and herb seasoning, ground black pepper, and chopped fresh dill in a bowl. Stir to coat chicken breasts completely. Let stand for 10 minutes.

Step 3
Remove chicken breasts from marinade, discard marinade, and grill chicken for 10 to 15 minutes on each side, or until juices run clear and an instant-read meat thermometer inserted into the thickest part of a breast reads at least 160 degrees F (70 degrees C). Remove from grill; let stand for 5 minutes. Cut chicken breasts in half.

Step 4
Melt butter and 2 tablespoons olive oil in a skillet over medium-high heat. Sprinkle garlic powder and salt over butter and oil. Add French bread slices to the pan and toast until golden brown on one side, about 3 minutes; remove from pan.

Step 5
For sandwich assembly, place one slice of French bread with toasted side down onto a serving plate. Spread mayonnaise on bread; top with a slice of tomato, salt and ground black pepper to taste, half a grilled chicken breast, and lettuce. Spread untoasted side of another slice of bread with mayonnaise and place on top to make a sandwich.