First, roast your tomatoes. I did mine on the stove and just roasted them whole.
Then, in a large freezer bag, add the tomatoes (once cooled), chopped red onion and pepper and all the seasonings. Top with the chicken.
I like to write the directions on the bag - they are as follows: Add 2 cups of broth and cook on low for 6 hours in the slow cooker. During the last 30 minutes, add in 4oz of cream cheese, a handful of shredded cheddar cheese and 1/2 cup of cream. Pull chicken and mix well.
Cook according to the directions.
Top with crushed tortilla chips, avocado, cheddar cheese, sour cream or your other favourite toppings.