Mix the first three ingredients separately. Heat the oil and saute the onions, broccoli and carrots until semi-tender. Add the other vegetables and saute 2 minutes more. Add all the remaining ingredients and saute for 2 minutes more. Break up the bouillon cubes in the stir-fry and mix them well with everything else. Remove the saute from the heat and mix it well with the flour mixture. Put the mixture into a pan and bake at 375 degrees for 50 minutes. Cool ten minutes before serving. Serve with vegetable gravy.