Winter Veggie Stir-Fry

1 large white potato, cubed
1 sweet potato, cubed
1/2 pkg firm tofu, cubed and marinated in vegetable broth
2 Tbsp olive oil
1/4 cup vegetable broth
1 pkg frozen vegetables, thawed (or 3 cups fresh vegetables)
Salt, soya sauce and olive oil, to taste

• Brown the potatoes and tofu in the olive oil until crispy.
• Stir in the vegetable broth and vegetables. Cover and steam.
• Uncover and stir until the excess liquid is evaporated. Season with the salt, soya sauce and olive oil.