Heat some peanut oil in a pan/wok (enough to cover bottom) till it is hot,
but not burning/smoking. Add the ginger/garlic/etc., and stir-fry it until
the garlic starts to brown (be careful not to burn it).
Add the mince, and cook it while stirring it quickly until it looks cooked.
Then add the mixed sauce. Cook the meat and sauce for another couple of
minutes.
Add the spring onions.
Cook 500g of dried noodles (actually, you might adjust that depending on
the type of noodle, some are more filling than others) in boiling/boiled
water until they soften. Drain the noodles, toss in a little toasted
sesame oil.
Serve the noodles with the meat sauce (both should be hot). You can do
this by trying to mix the sauce through the noodles (this can be awkward as
you have a large volume of food), or you can mix individual servings.
Equally, you could put a serving of noodles on each plate/bowl, and then
ladle the meat sauce onto the noodles (like spaghetti bolognaise).