Spinach Squares - Master recipes

Ingredients

• 2 tablespoons butter, melted, divided -
• 1 cup all-purpose flour -
• 1 teaspoon baking powder -
• 3/4 teaspoon salt -
• 1/2 teaspoon dried oregano -
• 1/4 teaspoon dried basil -
• 1/4 teaspoon dried thyme -
• 1/4 teaspoon pepper -
• 3 large eggs -
• 1 cup whole milk -
• 2 packages (10 ounces each) frozen chopped spinach, thawed and squeezed dry -
• 2 cups shredded cheddar cheese -
• 2 cups shredded Monterey Jack cheese -
• 1 cup chopped onion -
• Sliced pimientos, optional -