Ah, the fun of doing random things in the kitchen:
For the spinach pockets: cook some garlic and sliced leek in a bit of olive oil until the leek starts to take on some color. Add a bit of flour and cook a couple more minutes. Add white wine, salt, and wilted spinach and cook, stirring frequently until most of the liquid is gone. Wrap this with diced feta cheese in pieces of puff pastry (blätterteig) and bake at 220C until nicely colored.
For the geschnetzeltes: cook the beef in a single layer in a very hot pan with a bit of oil and a pinch of salt until it's nicely browned on one side. Stir in some flour and let cook another minute or two. Add some cognac and let the liquid evaporate. Add prepared mustard, water, piment d'espellete, and black pepper. Let simmer a couple of minutes and then serve.
Along with a big beet and lettuce salad these made a very good meal.