Cut the jalapeño into 1/4-inch slices. If desired, remove the seeds and veins for less spice.

Place jalapeño slices on a baking sheet and broil until softened and starting to brown, about 2 to 4 minutes. Remove pan and set aside.

Adjust the cooking rack to the bottom position. Place an empty sheet pan inside the toaster oven and preheat to 400°F on the bake setting.

Spread one side of each slice of bread with mayonnaise and place the bread mayo-side-down on a cutting board.

In a small bowl, combine the cream cheese, green onion, and garlic powder. Spread the mixture evenly over each slice of bread.

Arrange jalapeño slices on one slice and distribute the cheeses evenly over both slices.

Carefully add the bread to the preheated pan, mayo-side-down.

Return to the oven and bake until the bread is toasted and the cheese is melted and bubbly, about 6 to 7 minutes.

Drizzle the honey over the jalapeño and sprinkle with corn flakes (if using). Top with the remaining slice of cheesy bread.