Preheat oven to 400° F. Get out one of your beater sheet pans.
Put the cauliflower florets, sliced shallot, and garlic in a bowl, sprinkle with the spices, drizzle with the olive oil, and toss or stir to coat everything evenly. Tumble everything out onto a rimmed sheet pan, give it a shake to ensure everything is in a single layer, and bake for 30 minutes or until caramelized to your liking. You can flip things over with a spatula about half-way through, if you wish.
Serve over cooked white beans and top with thinly sliced or grated Parmigiano Reggiano and toasted pepitas.