I'm not officially vegan because I don't want to invite anyone to go over my choices with a fine comb, but I've been vegetarian and leaning towards vegan since the mid-nineties, with a few lapses in the beginning. I still buy leather items at thrift stores, and I'm certain that I occasionally take (or give to family) medicines and foods that contain gelatin. I'm not willing to agonize over details so I just work on what I can and try to live in the general direction of veganism.
Until recently I was still willing to occasionally purchase frozen pizzas or yogurt made from cow milk for my family, but I've started to feel bad when I do. I've never bought a container of straight cow milk for myself or anyone else. I was raised amongst red-blooded conservative american southerners, but I never learned how to use cow milk because I apparently rejected it as an infant. That bit of luck gave me a head start on learning substitutions and workarounds.
So, I know this is an old topic, but my answer to the main question is that we eat a lot of beans and rice, mostly. We also keep like a zillion kinds of seeds and nuts in the house to add to whatever else we are eating. We rarely use tofu or premade meat substitutes, but for some holidays and special occasions we do so we don't have to throw out the foods that go along with our cultural heritage. When we make something with bread or noodles instead of rice, we make sure to get whatever is least processed so it can help with getting enough fat and protein, and we try to make sure most meals have multiple colors as a rule of thumb.
Falafel is awesome, stirfry is awesome (try adding cashews or peanuts), any kind of curry is wonderful, and if there's a meat-based meal you love you can probably find a way to mimic it without animal ingredients. I adore soups and stews, and they usually cook long enough that even meat eaters are able to easily digest the beans and grains in them.
The only thing I really miss other than cow steak is gumbo. I can't figure out any way to make that without clams or shrimp or turtle.