• Step 1

  Preheat oven to 350 degrees. Blanch beans 2-3 min in large pot of boiling, salted water until crisp-tender. Drain; transfer to bowl of ice water. Drain and set aside.

• Step 2

  Heat 1 Tbsp of olive oil in large skillet on MED-HIGH, until oil faintly smokes. Add half of mushrooms; cook, stirring, about 10 min, until dry. Remove from pan. Repeat with other half of mushrooms. Season to taste with salt and pepper. Let cool.

• Step 3

  Mix beans and mushrooms in 13x9-inch baking dish. Stir in gravy; bake about 50 min on center rack of oven.

• Step 4

  Top with fried onion pieces; return to oven 10 min.

Note: When servings & ingredients are modified, nutrition & directions may vary.