Somehow, we've made it to 2016 without knowing that House of Prime Rib had anything on offer besides four cuts of rib roast, baked or mashed potato, and creamed spinach ย— and the house signature, MSG-heavy salad bowl, of course, and Yorkshire pudding. But over at 7x7 this week, "secret recipe" guy Omar Mamoon (who also started local, egg-free cookie dough company Dough & Co.) reveals that there is, indeed, a "secret menu" at the venerable old steakhouse, which not only includes creamed corn (!), but also a potentially vegan-friendly grilled vegetable plate ย— which the restaurant says they serve approximately two of per night, and which, if ordered as-is, comes with chunks of fresh mozzarella.

If you go to House of Prime Rib and tuck yourself into one of their big leather booths, you'll be greeted by a very simple, very old-timey menu that keeps your options to a minimum. In addition to a kid's plate and a single fish of the day, there are four choices of cut for your prime rib: the semi-thin English cut (the menu notes "some feel that a thinner slice produces the better flavor"); the thicker House of Prime Rib cut; the thickest King Henry VIII cut; and the most modest City Cut ("a smaller cut for the lighter appetite").

Among the off-menu options, though, some of which servers will mention when you're at the restaurant, you can ask for seconds of meat and have the big silver zeppelin wheel back around to your table ย— and Mamoon recommends asking for crispy, salty end cuts. You can also opt for that reportedly delicious creamed corn on the side.

House of Prime Rib King Henry V Cut Steak w/ yorkshire pudding, mashed potato, creamed corn 1/3 Best a la carte dishes of last December. Coi์— ์Šคํ…Œ์ดํฌ ๋ฉ”๋‰ด๊ฐ€ ์˜์˜ ์‚ฌ๋ผ์กŒ์œผ๋‹ˆ, ์ด์ œ๊นŒ์ง€ ๋จน์–ด๋ณธ ์ตœ๊ณ ์˜ ์Šคํ…Œ์ดํฌ๋ฅผ ํŒŒ๋Š” House of Prime Rib. ์••๋„์ ์ธ ๋‘๊ป˜, ๋ถ€๋“œ๋Ÿฌ์šด ์œก์งˆ, ์ง„ํ•œ ๋น„ํ”„์ฅฌ. ๊ณ ๊ธฐ๋ฅผ ์ข‹์•„ํ•˜๋Š” ์‚ฌ๋žŒ๋“ค์ด๋ผ๋ฉด ๊ผญ ํ•œ๋ฒˆ ๋“ค๋ ค๋ด์•ผ ํ•  ๊ณณ! ์˜ˆ์•ฝ์€ ํ•œ๋‹ฌ์ „์—... . #houseofprimerib #sfeats #steak #steakporn #gastronomia #foodie #foodporn #sanfrancisco #ํ•˜์šฐ์Šค์˜ค๋ธŒํ”„๋ผ์ž„๋ฆฝ #์Šคํ…Œ์ดํฌ #์ƒŒํ”„๋ž€์‹œ์Šค์ฝ” #๋จน์Šคํƒ€๊ทธ๋žจ #๋ง›์Šคํƒ€๊ทธ๋žจ #๋จน๋ฐฉ #latergram

A photo posted by JiHoon Lee (@__jihoon_) on

Most notable, perhaps, is the option of getting a big, thick Henry VIII cut seared, essentially turning it into a delicious ribeye steak.

Also, you can get baked potato toppings, like sour cream and chives, on top of your mashed potatoes, which: Why didn't I know about this?

And if you needed any more incentive to go to perennial Top 100 favorite House of Prime Rib, Giants players Joe Panik and Andrew Susac just enjoyed a dinner there last week. Observe:

Out to dinner with my man @andrewsusac #HouseOfPrimeRib ๐Ÿ—

A photo posted by Joe Panik (@joepanik) on

Related: The 10 Best Classic Restaurants In San Francisco