Preheat the oven to 400°F. Season the chicken with salt, pepper and paprika. Set aside.
Melt one tablespoon of butter in a frying pan over medium-high heat. Add minced garlic and onion in and cook stirring for approximately 3 minutes. Remove the cooked garlic-onion from the frying pan and place them in a baking dish or an oven-safe glass casserole dish.
Melt 2 spoons of the remaining butter in the same pan. Add chicken breast in and cook both sides until golden on the outside (about 2-3 minutes on each side). Remove and place the chicken in the same baking dish.
In the same frying pan, add spinach and cook for about 2 minutes until the spinach is tender.
Add chicken broth, cream cheese, lemon juice and thyme in and bring to boil.
Pour this spinach to the same baking dish with chicken then place it in the oven and bake for about 20 minutes.
Remove and let it cool for 5 minutes before serving. Enjoy.