Fresh Green Bean Casserole

1. preheat the oven to 350 degrees. spray a 1 1/2 quart baking dish with nonstick spray 2. bring a large saucepan of lightly salted water to a boil. add the beans, return to boil and cook until just crisp-tender, 2 minutes. drain 3. heat the oil in a large nonstick skillet over medium heat. add the mushrooms and onion and cook stirring occasionally, until lightly browned, 6-7 minutes. add the garlic and cook, stirring constantly, until fragrant, about 30 seconds. add the madeira and cook until evaporated, about 1 minute. add the flour and cook, stirring constantly 1 minute. 4. add the broth and cook, stirring constantly, until the mixture comes to boil and thickens, about 2 minutes. remove from the heat and stir in the beans, salt and pepper. pour into the prepared baking dish. 5. stir the bread crumbs, butter and cheese together in a small bowl until blended. sprinkle the crumb mixture over the casserole and bake, uncovered, until the casserole is bubbly and the top is golden, 20 minutes.