I buy dried liver treats and I make a big jar of salmon treats every Sunday night. I use them for training, and i put some in their Kongs every morning. The recipe is for 3 dogs. Store in fridge for a week, or freeze and use as needed:

3 cans of salmon, plus the water in the can (I buy cheap salmon)
2 eggs, beaten
1 tsp. of garlic powder
1/2 c. grated cheddar cheese---if you want
Add about 1 1/2 c. of flour, or enough to make the dough the consistency of brownie mix. Spread on greased cookie sheet and bake in 350 degree oven for 20-25 minutes. When cool, cut into small cubes with pizza cutter.

So for about $4, I have healthy treats for 3 dogs--2 standard poodles and a mini poodle--for a week!