While noodles are traditional, you could also make stroganoff with rice or potatoes. I'd suggest cooking the stroganoff sauce separately (you'll want to reduce the chicken broth since there are no noodles to absorb it), then serving it over cooked Garlic Mashed Potatoes or (for a low carb stroganoff) Cauliflower Mashed Potatoes. For rice, Instant Pot Brown Rice is easy and hands-free.