Step 1

Add the sliced onions, tomato puree, salt, cumin, chili powder, and garlic powder to a 6-quart slow cooker, stirring to combine.

Step 2

Nestle the chicken into the slow cooker, making sure it is well covered by the tomato mixture.

Step 3

Cook on high for 3-4 hours or low for 6-7, until the sauce has thickened, the onions are soft, and the chicken is falling apart.

Step 4

Remove the chicken and shred with two forks. Add the shredded chicken back to the slow cooker, stirring to combine.

Step 5

Add the lime juice and additional salt if desired. Serve warm, adding hot sauce to taste.