In 3 ½- to 4-quart slow cooker, mix all ingredients except macaroni and pesto.
Cover; cook on Low heat setting 8 to 10 hours.
Stir in macaroni. Cover; cook on Low heat setting about 15 minutes or until macaroni is tender. Top each serving with spoonful of pesto.
or 24 mind on high pressure instant pot; add veggies in last 10 mins --- I tried this and the insta pot said burn so maybe more water in the 2nd round with the veg and noodles? And less time?
