Dice the onion and mince the garlic; set aside.
In a skillet, heat olive oil over medium heat until shimmering. Add the diced onion and sauté until translucent and fragrant, about 3-4 minutes. Add the minced garlic and cook for another minute until fragrant, being careful not to burn it.
Transfer the sautéed aromatics to the slow cooker. Add the shredded chicken, drained beans, diced tomatoes with juices, and chicken broth. Sprinkle in the cumin, smoked paprika, and a pinch of salt and pepper.
Cover the slow cooker and set it to low. Let it cook for 6 to 8 hours, until the flavors meld, the chicken is tender, and the broth has thickened slightly. The house will fill with a smoky, savory aroma.
Once cooking is complete, taste the stew and adjust seasoning with more salt, pepper, or spices if needed. For a brighter flavor, squeeze in a little lemon juice or a splash of vinegar.
Ladle the stew into bowls, garnish with fresh herbs if desired, and serve hot. The thick, fragrant stew is perfect for cozy evenings, offering tender chicken and creamy beans in a comforting broth.