Spread 1/2 Tbsp garlic mayonnaise on one side of each slice of bread. Cover 12 slices of bread with avocado slices. Top each with 2 slices of chicken or turkey and 1 slice cheese. Cover each with remaining slice of bread, spread-side down, diagonally cut each in half. Reserve.

 

Beat together egg, milk, and salt; reserve. Dip 2 halves of a sandwich in egg mixture, coating well. Brown in hot butter, about 2 minutes per side. Serve with 1/4 cup fresh fruit salsa. Garnish with a cilantro sprig.