1. Preheat oven to 400°F.
2. Prepare lasagna rolls using micro preparation instructions.
3. Cut bacon into 1-inch pieces and sauté over medium-high heat until crisp.
4. Remove excess bacon drippings, reserving about 1 tablespoon.
5. Add butter, sweet potatoes, brown sugar and walnuts. Stir until sugar is dissolved.
6. Drizzle butter sauce over lasagna rolls.
7. Cover lightly with aluminum foil and bake for 11-15 minutes or until rolls reach 165°F.