Wasn't really going for a Christmas theme, but once I put the peppers and mushrooms on the baking sheet it just screamed Merry Christmas.
Super simple to make and a crowd pleaser. I coarsely chop up the veggies and toss them in a large mixing bowl with olive oil and italian herbs. Today I had oregano, basil and some roasted garlic powder. I cook the italian sausage separate in my cast iron fry pan, cut it into bite size pieces and add that at the end. Not sure mushrooms are traditional but I like them. I use purple onions too and hadn't added them yet to the pan when I took the picture.