1poundasparagusor about 1 bunch, woody ends trimmed
1lemonhalved (use half for juicing and slice the other half into 1/4-inch-thick rounds)
1tablespoonbuttercut into 1/4-inch pieces
Salt and freshly ground black pepper
1/4cupshredded parmesan cheeseor more if desired
Instructions
Preheat the oven to 425 degrees. Line a large baking sheet with parchment paper or foil.
Bring a large pot of water to a boil. Add the asparagus and return to a boil. Cook for 2 minutes. Drain and transfer the spears to the prepared pan, spreading out in an even layer. Squeeze the unsliced lemon half over the asparagus.
Arrange the lemon slices along the top half of the asparagus. Sprinkle the parmesan cheese underneath the lemon slices. Top the asparagus with the butter pieces and season with salt and black pepper.Roast for 5 to 10 minutes, until the cheese melts and the asparagus is golden brown.