Heat oil in a large casserole dish on medium-high heat. Add chicken thighs, skin side down and brown for four to five minutes on each side. Remove from pan and set aside.
Add fennel, carrot, and celery to pan, and sauté until softened. Then add thyme, garlic and sun-dried tomatoes and sauté for one minute or until slightly fragrant. Add tomato sauce, and cook for three to four minutes.
Pour in white wine and cook until the majority of the liquid in the pan has evaporated.
Add beans, chicken broth, and salt and pepper to taste. Stir and bring to a simmer. Cook for five minutes.
Remove casserole from heat and top with seared chicken thighs (skin-side up). Bake for 15 to 20 minutes, or until chicken has completely cooked through and skin has crisped up.
Top with fresh chopped parsley to garnish, and serve alongside crusty bread. Enjoy!