Place the chicken in the bottom of your slow cooker. Doesn’t matter if it’s raw it’ll cook through perfectly.
Add the minced garlic, onion powder, Italian seasoning, salt, and pepper. Sprinkle everything evenly over the chicken.
Pour in the low-sodium chicken broth until the chicken is covered. Add a small splash of olive oil if you want a little extra richness.
Cover and cook on Low for about 5 to 6 hours (or 3 hours on High).
Once the chicken is tender, shred it gently right in the slow cooker using two forks.
Stir in the spinach and let it wilt for about 5 minutes. It’ll look like too much at first, but it melts down fast.
Turn off the heat, then stir in the Greek yogurt. Add it slowly so it blends smooth and doesn’t curdle.
Taste and adjust seasoning if needed.
Serve warm. Maybe add a sprinkle of herbs or a drizzle of olive oil on top if you’re feeling fancy.