1. Boil or steam sweet potatoes and carrots until tender throughout. When they are almost finished cooking, heat orange juice to boiling in saucepan.
  2. Add the orange peel and lemon juice.
  3. Dissolve the cornstarch in the 1 tablespoon water and add to orange mixture. Continue to heat, stirring until thickened.
  4. Remove vegetables from pan and place in serving dish. Drizzle orange sauce over it and sprinkle nuts on top.
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