Ingredients

• 3 of lasagna (pieces)
• 190 gr ricotta cheese
• 100 gr spinach
• 120 ml vegetable stock
• 60 gr mushrooms
• 40 gr cheddar
• 28 gr margarine
• 5 gr margarine
• 5 ml soy sauce
• 1 gr marjoram
• 8 slices lasagna
• some spinach