Pat the chicken breasts dry with paper towels and season generously with salt and pepper. Place them in the crockpot, spreading them out evenly.
In a small bowl, whisk together the freshly squeezed lemon juice, minced garlic, herbs, and olive oil. Pour this bright mixture evenly over the chicken breasts, ensuring each piece is coated well.
Add sliced vegetables like carrots or potatoes around the chicken in the crockpot. Pour the chicken broth over everything to keep it moist and help develop the sauce.
Cover the crockpot and set it to low. Cook for 4 to 5 hours, until the chicken is tender, opaque, and easily shredded with a fork. The house will fill with a fresh citrus aroma as it cooks.
Check the chicken at around 4 hours; it should be juicy and the sauce slightly thickened. If needed, continue cooking for another 30 minutes.
Once cooked, carefully transfer the chicken to a plate or cutting board, letting it rest for 5 minutes to retain its juices.
Finish by squeezing a little extra lemon juice over the chicken for a fresh burst of flavor. Serve hot, spooning vegetables and sauce alongside for a complete, bright meal.