Preparation

做酸奶酱

• 在一个小碗中，将酸奶，葱，咸菜，番茄酱，伍斯特郡，辣椒粉和辣酱混合在一起。调味，用盐和胡椒粉调味。放置直到需要，或在冰箱中的密封容器中存放长达5天。

制作蘑菇和菠菜

• Position a rack in the center of the oven, and heat the oven to 400°F. Line 2 large rimmed baking sheets with parchment.
• 用中火在小煎锅中烤香菜和芥末种子，经常搅拌，直到香气2至3分钟。转移到香料研磨机中，冷却。加入熏制的辣椒粉，颗粒状的大蒜和糖。研磨，直到整个香料破裂并粗糙为止。（或者，在砂浆和杵中磨碎。）
• 将蘑菇放入一个大碗中，并撒上香料混合物。调味，用盐和胡椒粉调味，然后用伍斯特郡和4汤匙折腾。油。将蘑菇铺在准备好的烤盘上。烤直到蘑菇被焦糖化，所有液体都蒸发，切换锅位置并在中途搅拌，总共约25分钟。转移到一个大碗中。
• 同时，将剩余的2汤匙放置。石油和大蒜丁香在大型的不粘锅中。用中高温煮，经常搅拌，直到大蒜变成金色和香，3至4分钟。丢弃大蒜，然后加入菠菜。用盐和胡椒粉调味。分批煮，偶尔扔，直到菠菜枯萎。继续烹饪，经常搅拌，直到所有液体蒸发，菠菜变黑，总计4至5分钟。用蘑菇将菠菜转移到碗中，然后扔掉。调味，用盐和胡椒粉调味。如果提前进行，将蘑菇和菠菜存储在冰箱中的密封容器中长达1天。

做三明治

• 将架子放在烤箱的上部三分之一中，将烤箱放在烤箱中，然后将架子放在烤箱上部的三分之一中。第2行带有箔纸的大型有框烤盘，并用烹饪喷雾轻轻地涂上。
• 在一个中等大小的碗中，将酸菜和香菜籽搅拌在一起。
• Split the rolls in half horizontally, keeping them attached on one end so that they open like a book. Spread butter on the outside of each roll. Put the rolls, opened, on the prepared baking sheets. Place a slice of cheese on each roll. Divide the mushroom and spinach mixture among the rolls. Spoon about 2 Tbs. of sauerkraut on each sandwich, followed by about 2 Tbs. of the yogurt sauce (you won’t need all the sauce). Top each sandwich with another piece of cheese, and then close the rolls. Press down on each sandwich with the palm of your hand. (The sandwiches can be prepared to this point, and then wrapped in plastic. Store in the refrigerator for up to 1 day.)
• Slide one pan into the oven on the prepared rack. Broil the sandwiches until golden and toasted, rotating the pan halfway through, about 2 minutes. Remove the pan from the oven, flip the sandwiches over, press down with a spatula, then continue broiling until the bread is toasted on the other side and the cheese has melted, about 3 minutes longer. Repeat with the second pan of sandwiches. Cut the sandwiches in half, and serve with the remaining sauce on the side.