Season the chicken thighs with salt, pepper, onion powder, and smoked paprika.
Heat olive oil in a skillet over medium-high heat.
Sear the chicken thighs skin-side down until golden brown, about 4-5 minutes.
Remove the chicken from the skillet and place it in the crock pot.
In the same skillet, add minced garlic and sauté for 30 seconds.
Pour in the chicken broth and scrape up any browned bits from the bottom.
Pour the broth mixture over the chicken in the crock pot.
Add the mixed vegetables around the chicken.
Cover and cook on low for 6 hours or high for 3 hours.
Garnish with fresh parsley before serving.