hmmm.... I don't use the gravy mix.

I do:
500gm beef
grated veges
2 beef stock cubes
2 bay leaves
1 cup water
1 tbsp flour with sml amount of water to make paste & stir through above mix after cooked for 20 minutes
1 tsp soy sauce
1 tsp worstershire sauce

ETA: then I top with mashed potato & pop in the oven, when I was eating dairy I would add grated cheese to the top.