I make (vegan) bolognese, chili sin carne and similar weekly. It's so easy to mix up with different ingredients, seasonings etc. I usually use soy-based mince since it's the cheapest but I use other stuff like tofu, mince made from peas, mushrooms etc. pretty often too. They all give different textures and tastes so it's an infinitely variable thing. Lately I've been making bolognese-ish with oat milk and mushroom slices added, makes it really nicely creamy and earthy.