Big Man Meat And Mashed Potato Tart

• 8 russet potatoes
• 2 tablespoons butter
• 4 eggs, beaten
• 1 large onion, peeled and chopped
• 1/4 cup dried sourdough bread crumbs
• 1/4 cup butter
• 3 teaspoons salt, separted
• 1 tablespoon olive oil
• 1/2 teaspoon pepper
• 1/2 cup sour cream
• 1/4 cup green onions, chopped
• 8 ounces top sirloin steak
• 1 tablespoon steak grill seasoning
• 1/2 cup cheddar cheese, shredded

1. Put potatoes in a large pot with enough water to cover. Sprinkle 2 teaspoons salt and bring to a boil. Reduce heat to a simmer until tender. Drain and let cool until you can handle them. Peel and mash in a mixing bowl. Stir in olive oil, eggs, pepper and remaining salt. Meanwhile, in a skillet, saute the onion in butter over medium heat until soft: about 7-10 minutes. Remove from onions from pan. Place 1 Tablespoon oil in pan over medium high heat. Sprinkle meat with grill seasoning and place in hot pan to sear. Cook for 4 minutes per side for medium rare. Remove from heat and let rest 5 minutes. Slice thinly.
2. Preheat oven to 375 degrees F. Oil a 9-inch spring form pan and coat the inside with the bread crumbs. Spoon half of the potatoes in the pan. In a small bowl combine sour cream and chives: spread over the potatoes. Next spread 1/2 the cheese, 1/2 onions and 1/2 cooked beef. Top with remaining potatoes and remaining cheese, onions and beef.
3. Bake covered for 1/2 hour and remove cover and bake another 1/2 hour or until the potatoes are golden brown on top. Remove from the oven and let cool for 15 minutes. Carefully remove the spring form ring and serve warm or at room temperature.

potatoes, butter, eggs, onion, bread crumbs, butter, salt, olive oil, pepper, sour cream, green onions, grill seasoning, cheddar cheese

Taken from food52.com/recipes/10274-big-man-meat-and-mashed-potato-tart (may not work)