Easy Lasagna recipe, Make lasagna at home

Ingredients

• 4 tbsp Butter
• 4 tbsp All-purpose flour
• 4 cups Milk
• Salt
• Pepper
• 1 pinch Nutmeg
• 2 tbsp Olive oil
• 1 Onion
• 2 cloves Garlic
• 1 lb Beef
• 1 can Crushed Tomatoes
• 1 tsp Oregano
• 2 tsp Basil
• 12 Lasagna Noodles
• 2 cups Ricotta cheese
• 1 Egg
• 2 cups Mozzarella cheese
• 1/4 cup Parmesan cheese
• 2 cups Spinach
• 1 cup Mushrooms