Savory wild oregano pie with walnuts

Ingredients

For the oregano mix:

• 1 cup oregano, ground
• 1 cup sumac, ground
• 1 cup brioche crumbs, finely ground
• 2 Tbsp sea salt

Pie topping:

• 3/4 cup oregano mix
• 1/4 cup extra virgin olive oil
• 1/2 vidalia onion, finely diced
• 1/4 cup walnuts, crushed into small pieces

For the dough:

• 3 1/2 cups whole grain flour
• 1 1/2 cups luke warm water
• 1 teaspoon dry active yeast
• 2 tablespoons vegetable oil
• 1 tablespoon sugar
• 1 teaspoon salt