Save on Pinterest

Italian Potato Casserole

Total Time

Prep: 15 min. Bake: 30 min.


4-6 servings

Updated: Oct. 22, 2022
After one taste, you'll see why this delicious dish won grand prize in a local newspaper cooking contest. It's a great variation on traditional shepherd's pie.


  • 1 pound bulk Italian sausage
  • 3 cups mashed potatoes
  • 1 cup chopped onion
  • 3/4 cup chopped green pepper
  • 2 garlic cloves, minced
  • 1 tablespoon vegetable oil
  • 2 cups sliced fresh mushrooms
  • 2 cups chopped fresh tomatoes
  • 1 can (2-1/4 ounces) sliced ripe olives, drained
  • 1 teaspoon dried basil
  • 1/4 teaspoon salt
  • 1/8 teaspoon pepper
  • 1/4 cup grated Parmesan cheese
  • 1 tablespoon chopped fresh parsley or 2 teaspoons dried parsley flakes


  1. In a skillet, cook sausage until no longer pink; drain. Place in a greased 9-in. square baking dish. Top with potatoes. In the same skillet, saute onion, green pepper and garlic in oil for 5 minutes or until vegetables are crisp-tender.
  2. Stir in the mushrooms, tomatoes, olives, basil, salt and pepper. Spoon over potatoes to within 1 in. of edge of dish. Sprinkle Parmesan cheese and parsley on top. Bake, uncovered, at 350° for 30-35 minutes or until top is lightly browned.

Recommended Video