If you have time but not money, you could try this recipe from the blog Chaos And Pain (warning, nsfw site, and not for easily squicked-out folks either):

John McCallums’s “Souped-up Soup”

• Don’t throw out any parings from food prep. Get a plastic bag and save all of the vegetable parings, and when the bag gets full, make the soup.
• Save all of the bones and scraps from your meat food prep. Store in a plastic bag in the freezer for use in your soup. Since you’re going to want to eat your soupe with every meal, however, McCallum suggests you buy soup bones from the butcher. At my local supermarket they sell for less than a buck a pound, and every dog I’ve ever met loves the fuck out of them as a snack, entertainment, and a way to supplement their diet.
• Use a cleaver or hatchet to chop up the bones finely.
• Put two quarts of water into a big soup pot.
• Add a couple of tablespoons of vinegar and a tablespoon of salt. This is essential to draw out the calcium from the bones and the nutrients from the veggies. The vingear will boil off, lest you worry.
  
• Boil for four hours.
• Strain out all of the bits and pieces with a fine strainer.
• The remaining stock is what you’ll use to make the soup, and McCallum claims if you just drank that you’d triple your nutrient intake.
• Put the stock in a clean pot and chop up the veggies you want- he suggests carrots, celery, onions, potatoes, garlic, and turnips.
• Simmer the veggies until they start to soften, then add three lbs of chicken wings, short ribs, stewing beef, or any kind of meat you like. If you want to go cheap, buy what’s onsale and use that.
• Continue simmering until the meat is tender.
• Take two cups of water and dissolve in as much skim milk powder as will go into solution. Stir that into the soup.
• Simmer 5 minutes, then add a pound of ground beef, which will cook almost instantly.

Though he doesn’t provide the nutrition count from that, you’re looking at a soup that likely contains between 350 and 450 grams of protein that you use simply to supplement your existing meals, not to mention the incredible nutrition coming from the stock- the bones alone add 6.5 grams of protein and 4 grams of fat apiece. Made with meat that’s on sale, I cannot imagine it would cost more than $20 to make, and it would provide you with at least 8 meals or meal supplements.