Ingredients

3 tablespoons butter

1 medium red onion, halved and thinly sliced

Coarse salt and ground pepper

3 packages (10 ounces each) frozen peas

Preparation

Heat 2 tablespoons butter in a large skillet over medium. Add onion, and season with salt and pepper. Cook, tossing occasionally, until onion begins to soften, 2 to 3 minutes.

Add peas; cover skillet, and cook, stirring occasionally, until peas are warmed through and tender, 6 to 10 minutes. Remove from heat.

Add remaining tablespoon butter; stir until melted. Season with salt and pepper, and serve.