Preheat oven to 375 degrees.
Scrub sweet potatoes, cut into fries or wedges, and toss with olive oil in a bowl.
Place in a single layer on baking sheet and bake for 35-45 minutes until golden brown.
Heat oil in a large nonstick pan. Add chicken, and sauté for about 3 minutes or until lightly browned.
Add zucchini, eggplant, onion, green pepper, and mushrooms. Cook for about 15 minutes, stirring occasionally.
In a blender, combine all sauce ingredients and blend until smooth. Set aside.
In wok or large skillet, heat oil and stir-fry tofu cubes over high heat until golden brown, 5-7 minutes. Remove tofu and set aside.
To boil, place sweet potato chunks in pan. Cover with water and bring to a boil. Cover pot and simmer until tender, about 15 minutes. Drain pot, then mash sweet potatoes and combine with salt.