What you will need...
1.5 lbs Boneless, skinless chicken breasts
1 med-large onion cut into 1/4" slices
1 16-oz can baby corn (drained)
1 8-oz package of pre-sliced mushrooms
2 cans of Campbell's Creamy Chicken Verde Condensed Soup
*** Before I start... let me say that I've never been able to find the Chicken Verde soup. I've simply used Cream of Chicken and it's been fine. I've even used the Healthy Request version which has a lot less fat and it's still delicious. I threw in some fresh green garlic scapes and Voila! it became VERDE. Also... the recipe calls for 1.5-lbs of chicken breasts but it could easily handle 2-lbs.
Place the sliced onion, mushrooms and baby corn in the bottom of the slow cooker. Place chicken on top. Season the chicken. Pour the soup over the chicken. Cook on low for 4-6 hours.