A grown-up version of grilled cheese sandwiches.
Heat a cast iron or nonstick skillet over medium heat.
Spread 1/2 teaspoon mayonnaise on each slice of bread. Place bread slices mayo-side down in the hot skillet. Place jalapeno Jack cheese on 1 slice of bread, and top with tomato slices. Place mozzarella cheese on the other slice, top with basil, then top with Cheddar cheese. Cook until bread turns golden brown, 3 to 5 minutes. Carefully invert the piece with the tomato onto the piece with the basil.
Per Serving: 419 calories; protein 21.4g; carbohydrates 29.6g; fat 23.8g; cholesterol 64.6mg; sodium 805.2mg.