Mushroom And Blue Cheese Lasagne

Ingredients

• 125g Blue Cheese, crumbled
• 2 x 20g Packs Chestnut Mushrooms, cleaned and sliced
• 1 Large Clove of Garlic, crushed
• 12 Ready-to-Bake Lasagne Sheets
• 3 Tbsp Olive Oil
• 1 Large Onion, finely chopped
• 2 x 240g Packs of Pre-Washed Fresh Spinach
• 1 Large Jar (710g) Ready-Made White Sauce