1. Preheat oven to 400°F.
2. On a baking sheet, bake bread bits until crunchy, about 10 minutes.
3. Heat oil in a nonstick skillet over medium. Add shallot, celery, mushrooms, and kale. Cook for 5 minutes, stirring; add apple once shallot is soft. Cook 5 minutes or until apple is soft. Add parsley, thyme, sage, and garlic. Cook 1 minute or until fragrant; remove from heat and mix in bread and walnuts.
4. Add broth until moist. Cover with foil and bake 25 minutes. Remove foil and bake 10 minutes or until very hot. Add salt and pepper to taste. (Tip: In turkey, use less broth.)