Mine get fed twice a day - they have fairly different metabolisms so the quantity varies:
Bella (2 and a bit, weighs 10kg) gets 150-170g per day (including veg)
Zorro (8 months, weighs 10ish kg but will probably about 12kg when he's fully grown) gets about 300g per day
This is their weekly menu. The "evening mince" is the Pets at Home mince, and I mix up what they get, so a variety of rabbit, beef, chicken and lamb (no religious order to it, I just vary it over the month).
Mon breakfast: chicken (chicken backs for Bella - free from the butcher, 2 x chick wings for Zorro)
Mon dinner: evening mince plus an ice cube's worth of pulped veg incl garlic - 40g for Bella, 150g for Zorro
Tues breakfast: breast of lamb, alot of the fat stripped off - 80-100g portion for Bella, 120-150g for Zorro
Tues dinner: evening mince as above plus a raw egg
Wed breakfast: tripe and liver - the tripe is the PAH blocks and just a small bit of liver - 100ish g for each dog
Wed dinner: evening mince as above
Thurs breakfast: chicken as per Monday
Thurs dinner: evening mince plus an egg
Fri breakfast: breast of lamb as per Tues
Fri dinner: evening mince as above
Sat breakfast: tripe and liver
Sat dinner: evening mince as above
Sun breakfast: either raw mackeral fillets or a good sized raw whole sardine (head, tail and everything inbetween)
Sun dinner: evening mince
For supplements they get salmon oil with each meal (a recent thing as they've both had a bit of dry skin over the winter), Dorwest's Keeper's Mix every couple of days, and Vetzyme (b-vit complex - also for the dry skin).
I prepare 2 weeks' worth of dinners at a time (would do more if I had a bigger freezer), bagging them all up in portions (so in the freezer I have Zorro's dinners one side labelled lamb/chicken/offal/evening mince and Bella's on the other side). It's then just a case of defrosting tomorrow's meals tonight.
It does take a while to get into the swing of BARF and you have to just find your own way - opinions vary about whether they should have veg, cereals etc etc. Mine get a veggie mix - pepper, spinach, tomato, apple, garlic, herbs like parsley and thyme, blueberries if I have them - basically whatever is in the fridge, and I add a small handful of oats to the mix when I blend it just for a bit of roughage as Bella has problems with her anal glands otherwise.
Hope this helps - if I were you I'd just read through the various diets people put on this thread and go with whatever feels "right" for you and your dog. Don'd be afraid to ask questions, we've all been there
Raw feeding is a great way to go and both my dogs are thriving on it.