By Mayo Clinic Staff

Dietitian's tip:

This recipe includes a homemade white sauce instead of canned cream of mushroom soup, which cuts the sodium significantly without sacrificing flavor.

To make this plant based, use a milk substitute.

Number of servings

Serves 10
  1. DASH diet
  2. Low-sodium
  3. Heart-healthy
  4. Weight management
  5. Low-fat
  6. Plant-based
  7. Meatless
  8. Healthy-carb
  9. Diabetes meal plan


  1. 3 teaspoons olive oil, divided
  2. 1 medium onion, thinly sliced
  3. 1/4 cup finely chopped onion
  4. 1 clove garlic, finely chopped
  5. 2 tablespoons water
  6. 1 1/2 cups sliced mushrooms
  7. 3 tablespoons flour
  8. 1/2 teaspoon dried ground thyme
  9. 1 1/2 cups skim milk
  10. 1 pound fresh green beans, trimmed and cut into 1-inch pieces
  11. 1/3 cup fresh whole-grain bread crumbs


Heat oven to 350 F.

Heat a large skillet over low heat and add 2 teaspoons of olive oil. Add sliced onion and saute for 15 to 20 minutes, stirring frequently, until onions are golden. Remove onions from skillet and set aside.

Add the remaining 1 teaspoon of olive oil, chopped onion and garlic to skillet and cook for 2 to 3 minutes. Add water and mushrooms, cooking for an additional 5 minutes. Sprinkle flour and thyme over mixture and stir. Gradually stir in the milk. Increase heat to medium and stir constantly until the sauce thickens.

To cook the green beans, boil for 8 to 10 minutes in water. (Or, to save time, cook the beans with 2 tablespoons of water, covered in the microwave on high for 5 minutes.)

Drain beans and set aside. Spray a 2-quart casserole with cooking spray and place the green beans in the casserole. Pour the mushroom sauce over the green beans. Top with the sauteed onion slices and fresh bread crumbs. Bake for 15 minutes, or until the top is golden brown.

Nutritional analysis per serving

Serving size: About 2/3 cup

  • Cholesterol 1 mg
  • Calories 78
  • Sodium 34 mg
  • Total fat 2 g
  • Total carbohydrate 12 g
  • Saturated fat Trace
  • Dietary fiber 2 g
  • Trans fat Trace
  • Added sugars 0 g
  • Monounsaturated fat 1 g
  • Protein 3 g
July 27, 2022