How old is she? Fromm will fatten a pup up quickly if you aren't careful. My boy is 50 ish pounds, fully grown at 7 years old now and he gets a heaping 3/4 cup 2x a day. Unless gumbo is a puppy no need for 3 cups a day I am sure. If you want to do the home cooked mixed with Fromm just keep the food amounts you decide on the same as if you were feeding just kibble. What you do within those amounts is up to you. Meaning half of each feeding with kibble and homecooked etc. this is what I am gathering from previous posts in here anyhow,I haven't started home cooking myself although I like the idea.