Pound Chicken To Flatten Evenly; Set Aside. In A Skillet, Melt 3 Tablespoons Of Butter; Add Garlic And 1/2 Teaspoon Dill. Add Chicken; Cook Until Juices Run Clear. Remove And Keep Warm. Spread Both Sides Of Bread With Remaining Butter. In A Skillet Or Griddle, Grill Bread On Both Sides Until Golden Brown. In A Small Bowl, Combine Cream Cheese, Lemon Juice And Remaining Dill; Spread On One Side Of Grilled Bread. Place Lettuce, Chicken And Tomato On Four Slices Of Bread; Top With Remaining Bread.