Cauliflower Grilled Cheese with Sun-Dried Tomatoes

Preheat oven to 425 degrees F. Coat a large rimmed baking sheet with cooking spray.

Toss cauliflower, oil, salt and pepper in a large bowl. Transfer to the prepared pan. Roast, stirring once, until lightly browned and tender, 15 to 20 minutes.

Meanwhile, preheat a panini maker to medium-high.

Combine Cheddar and oregano in a medium bowl. Spread butter on one side of the bread slices. Place 1 slice, buttered-side down, on a cutting board. Top with 3 tablespoons of the cheese mixture, 1/2 cup cauliflower and 2 teaspoons tomatoes. Top with 2 tablespoons cheese and another slice of bread, buttered-side up. Repeat with the remaining bread, cheese, cauliflower and tomatoes.

Cook the sandwiches in the panini maker until golden brown and the cheese is melted, 2 to 4 minutes each.