Free Birthday Grand Slam From Denny's!
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Head over here to join the Denny's Rewards program and you'll score a coupon for a FREE grand slam the month of your birthday!
You won't have to wait that long for a discount, though -- you'll also receive a coupon for 20% off your next visit when you join the Rewards program.
Offer valid for a free Build Your Own Grand Slam® Premium items may require an additional cost. Not valid with any other coupons or promotional offers. No cash value. Taxes and gratuity not included. Beverages not included. One per guest. Must present valid photograph identification to server upon ordering. Must be a Denny's Rewards Member age 18 or older. Print and present QR code or display on mobile device at time of checkout. Offer valid for ONE Free Build Your Own Grand Slam® during the Rewards Member's birthday month. Valid dine in only.