3 creamy potato casserole with spinach and Recipes

potatoes (about 12-13 ), butter, sour cream (light is okay), salt and pepper, frozen spinach, thawed and squeezed dry or 1 (10 oz) package fresh spinach, crumbled feta cheese , to taste, fresh minced garlic , to taste, grated parmesan cheese

potatoes peeled cooked and mashed, sour cream, salt, freshly ground black pepper, chopped chives, butter, frozen chopped spinach thawed and well drained, shredded cheddar cheese