I have an oven recipe: Cut the brussel sprouts in half. Toss in olive oil, minced garlic, and rosemary. You can add salt too, but i like to top with finishing salt and black pepper at the end to feel fancy. Arrange on a baking sheet with the cut side down. Bake at 375-400F (my SO and I differ on our preferred temp setting, but there's no difference in the deliciousness, go higher if you like to get a bit of char going on) until tender (i think around 20 minutes? i usually don't set a timer, i just poke 'em with a fork every so often until it feels right lol).

Agreed, I pretty much never use my oven anymore because the air fryer is so much more convenient. I love frying veggies in the air fryer, usually zucchini or broccoli. Season them with whatever you like, Italian seasoning is usually a winner for zucchini imo, or if you're really going for a lazy meal, just salt and pepper are still good. I only really use the air fryer for sides though; wish I had a whole meal to recommend :(