cart = []  # Global cart

def add_to_cart(dish_name, spice_level, extras, instructions, quantity):
    """Add selected item to the cart."""
    item = {
        "Dish": dish_name,
        "Spice Level": spice_level,
        "Extras": ", ".join(extras) if extras else "None",
        "Instructions": instructions,
        "Quantity": quantity,
        "Price": f"${(quantity * 10.0):.2f}"  # Example price
    }
    cart.append(item)
    return cart_data()

def cart_data():
    """Return cart data."""
    import pandas as pd
    return pd.DataFrame(cart)