1 lb of ground meat (or chicken or whatever is on sale - no bone) approx.
I use both meats and offal (heart gizzard or whatever is on the market, liver (but not too much liver as it is an organ 'sponge' and sometimes can contain toxins/steroids from the animal)—am told the heart is an excellent protein and vitamin source for both dogs and cats. The veggies add extra vitamin nutrition for dogs(for optimal vitamin absoprtion, you may opt to grind the veggies up before placing in mixture to cook) I find my dogs don't eat grass as much since they've been eating the yellow and green wax beans in the stew—the broccoli can give a doggie stinky gas so it is recommended not to exceed 10% of your total recipe with broccoli/cauliflower.
It's very easy to make, and you can use pretty much any meat you have on hand (just don't include any cooked bones in their food),and just stay away from toxic ingredients like onions or mixed spices that might contain onions or salt or other spices that might irritate a dogs system. You can google spices safe for dogs and get a rough (or ruff) list of products that are safe to use.
For added animal calcium, save your empty egg shells, crush and place on shallow baking pan and bake on low for 20 minutes in the oven, crush with mortar and pestle or grind finely into powder, use sparingly in receipe (1/2 measuring teaspoon per pound of raw meat or per pound of cooked food) to boost calcium level in dog foods.