Deep Dish Ham & Cheese Quiche Gelson's

Ingredients

• 1 ½ sticks unsalted butter, melted, plus more for greasing
• 32 oz frozen, shredded hash browns, thawed and drained
• 1 ½ tsp kosher salt, divided
• 7 large eggs
• 1 ½ cups half-and-half
• 1 cup shredded Gruyére cheese
• 1 cup shredded Swiss cheese
• ⅓ cup chopped fresh chives
• 4 oz diced ham
• ½ tsp freshly ground Gelson’s black pepper