Lima Bean and Sweet Pepper Gratin
"This butter bean gratin is based on an amazing flageolet bean gratin that one of my mentors, Frank Stitt, makes. His recipe was originally inspired by one from Richard Olney," says Hugh Acheson. ("Butter bean" is a common Southern term for limas.) "It's an ode to the marriage of Southern vegetables and French know-how."
Slideshow: More Gratin Recipes