Ingredients

  • 4 tablespoons butter
  • 1 onion, chopped
  • 1 tablespoon fresh minced garlic
  • 2 celery ribs, finely diced
  • 1 small green bell pepper, seeded and chopped
  • 1 (10 ounce) can cream of mushroom soup, undiluted
  • 5 ounces milk (use 1/2 soup can)
  • 1 (10 ounce) can sliced mushrooms, well drained (or use fresh sliced sauteed)
  • 12 cup mayonnaise
  • 12 cup sour cream
  • black pepper
  • 12 teaspoon garlic powder (or to taste)
  • 2 12 cups cold cooked rice (use long-grain white or brown)
  • 13 cup grated parmesan cheese

Method

  • Set oven to 350 degrees (set oven rack to second-lowest position).
  • Butter a 2-quart casserole dish (or one large enough to hold the mixture).
  • In a skillet heat butter over medium heat until melted; add in onion, celery and green bell pepper; cook stirring over medium heat until softened (about 5 minutes) or until well softened adding in garlic the last 2 minutes of cooking, place the mixture into the bowl.
  • Add in soup, milk, drained canned mushrooms mayonnaise, sour cream, black pepper, garlic powder and cooked cold rice; mix with a wooden spoon until well combined adjusted black pepper and adding in a small amount of salt to taste (I use seasoned salt).
  • Transfer to prepared casserole dish.
  • Sprinkle parmesan cheese evenly over the rice mixture.
  • Bake uncovered for 35-45 minutes.