Cheesy Spinach Pie with a Mediterranean Touch

Ingredients

• 1 tsp sea salt, or to taste
• 1/2 tsp ground black pepper, or to taste
• 1.5 cup sharp cheddar cheese, grated
• 1/4 tsp fresh nutmeg, grated
• 1 tsp fresh oregano leaves, finely chopped
• 10 oz fresh spinach, coarsely chopped
• 5 large eggs
• 2 ripe Roma tomatoes, thinly sliced
• 2 cloves of fresh garlic, finely minced
• 2 tbsp fresh basil leaves, finely chopped
• 1/2 large yellow onion, finely chopped
• 2 tbsp extra virgin olive oil