On the Tovala checkout page (< add code (6AJ4A1J6) under the "Discounts & Gift Cards" section under "Order Summary," in the first spot labeled as "Enter coupon or referral code," and then click "Apply."
The referral code (6AJ4A1J6 | < takes $250 off the Tovala Smart Oven, discounting it to $49, plus accrues $50 in free meals.
[Full Disclosure: The referrer earns $50 in free meal credit, up to a maximum of $250, or five (5) total code uses.]