Ingredients:

  • 3 tablespoons olive oil
  • 1 onion, sliced
  • 1/4 pound cremini mushrooms, trimmed and quartered (about 14 mushrooms)
  • 1 1/2 pounds green beans, trimmed and slice into 1-inch pieces
  • 2 teaspoons salt
  • 1/2 teaspoon freshly ground black pepper
  • 1/4 cup white wine
  • 1/2 teaspoon red pepper flakes
  • 1 bunch kale (1/2 pound), rinsed, stemmed, and roughly chopped
  • 2 tablespoons lemon juice (about 1/2 a lemon)
  • 3 tablespoons finely grated Parmesan