No worries, chili is very forgiving!
Hominy is actually pretty common and it adds a really nice toasted popcorn-like flavor to dishes. I bet your local grocery store has it with the canned corn & beans.
Rotel might be a little harder to come by. If your grocer doesn’t have it try a mexican bodega. But not to worry if you can’t find it - a can of regular diced tomatoes + one of those little cans of green chilies + some extra chili powder should be a pretty nice substitute.

Let me know how it goes and happy new year!

But where do you find Rotel and canned hominy in NYC?

“Thanks for the kind words and publishing my recipe. I’d like to note two minor additions/corrections, though. The chili seasoning should be “taco seasoning” and the ranch dressing mix should be “buttermilk ranch dressing mix” that you can find as packets next to the dressings. Sometimes I can’t find the buttermilk, so I settle on the regular ranch.

The official name of this chili is “Taco Soup” - thus the reason for the taco seasoning. The original recipe called for only draining the corn, making it very soupy. I like my chili less soupy, so I drain everything but the rotel and the diced tomatoes.”