These are great:
https://www.elliekrieger.com/recipe/sweet-spicy-roasted-vegetables-2/
(this has sweet potatoes, not sure if that's allowed or not - you could certainly eliminate them and sub the other veggies)
I've also done carrots braised in olive oil with herbs (I can't find the recipe I used, but there are a lot out there if you Google it). Ina Garten also has tons of great roasted vegetable recipes (though they tend to be one-veg instead of medleys).