Tenderloin of Greek Black Pig of Olympus with Mustard Sauce - Φάρμα Φωτιάδη

Ingredients

• 1 tenderloin of Greek Black Pig of Olympus, sliced into 1.5 cm rounds
• 40 g mixed bell peppers, julienned
• 40 g finely chopped tomato
• 1 leek, finely chopped
• 60 g graviera cheese
• 100 mL mustard sauce (oregano, lemon, savory, curry)
• 50 mL white wine
• 200 g mashed potatoes
• Salt, freshly ground pepper, olive oil