In a slow cooker, stir together the ingredients from the diced tomatoes to the water. Mix in the chopped vegetables. Set the chicken breasts in the centre and push to submerge them.
Cook on high for 2-3 hours or low for 4-6 hours until the chicken is cooked through and the vegetables are tender. Remove the chicken and dice into cubes or shred.
Optional: Stir in 4 oz of crumbled blue cheese until melted.
Return the chicken to the slow cooker and stir to combine.
Serve, with desired toppings such as avocado, Greek yogurt, crumbled blue cheese, green onions and tortilla chips.
Notes
LeftoversStore leftovers in an airtight container and store in the refrigerator for up to 4 days or freeze for up to 3 months.Rewarm in the microwave until heated through or on the stove top over medium heat for 5-10 minutes with a splash of additional water.**Originally, the published recipe called for a can of diced tomatoes. I updated the recipe April 5, 2026 as I have made it the past few times with crushed tomatoes and actually prefer that texture. But you can still use diced tomatoes if that is what you prefer.