The great thing about pasta is that it's quick to make and can be served simply with a side salad or fresh veggies. A few healthy sides you could serve alongside this vegetarian fettuccine carbonara include Overnight Kale Caesar Salad, Simple Heirloom Tomato Salad, and Zucchini Ribbon Salad with Hazelnuts and Feta. Or keep things super simple and cut up some fresh greens and top them with a little Balsamic Vinaigrette or Olive and Basil Vinaigrette. This vegetarian carbonara is a knockout recipe, so you really don't need to do anything fancy with the sides.