Rainbow Grilled Cheese Sandwich

Separate the grated cheeses into separate bowls, one bowl for each color you plan to use.

Add a few drops of food coloring to each bowl and stir until the cheese reaches the desired hue; mix in the matching flavorings (basil into the green bowl, chopped sun‑dried tomatoes into the red bowl, garlic powder into the yellow bowl).

Butter both sides of each slice of bread; if using mayonnaise, spread it on one side of each slice and butter the other side.

Heat a non‑stick pan or cast‑iron skillet over medium heat and add a small amount of butter or oil.

Place a buttered slice of bread in the skillet, cooking until the underside is lightly golden, then flip the slice.

Quickly layer the colored cheeses on the bread in a rainbow pattern, then top with another buttered slice of bread, butter‑sides outward. For an open‑faced version, skip the top slice and finish in a preheated oven (350°F / 350°F) until the cheese melts.

Cook the sandwich until the cheese is fully melted and the bread is crisp, flipping once to brown the other side.

Remove the sandwich from heat, let it cool briefly, then cut across the rainbow layers for a dramatic presentation.

Serve immediately and enjoy the colorful, flavorful grilled cheese.