I think you have a little vegetarian on your hands. Don't panic. Mine declared at age 4, "No more meat." and it has been that way ever since, 20 years later! Try mashed lentils and rice (perfect protein combo), and if not allergic to wheat, give her whole wheat cereal (Wheetabix is a child's favorite. It can only be found in gourmet food stores, and I think it's made in Canada or England--delicious and very nutritious). Or try Cream of Wheat for a hot cereal. Wheat is a good source of protein. You need to experiment so as to not give too much fiber, causing loose stools. And do consult with your pediatrician or dietitian about this diet change. If you get the go-ahead, also add meat protein substitutes like soy. You can find soy hot dogs, hamburgers, "chicken nuggets" (most of these are easily found in the Morningstar Farm section of your normal grocery freezer). Even soymilk, "Silk" is a favorite, especially chocolate. However, if she will still drink regular milk, go with that. For protein, cheese is usually well-liked by kids (think macaroni and cheese), but don't overdo this or you will contribute to weight gain. Also, too much cheese can be binding. Peanut butter spread thinly on wheat bread with thin banana slices is good, if she not allergic to either peanuts or wheat. Meanwhile of course, include lots of green and yellow veggies and fruits. Give these meat substitutes (i.e., protein substitutes of soy, wheat, beans with rice, cheese) one at a time to be sure there no problem with allergies, and as I said, be sure and consult your doctor and/or nutritionist. If your baby seems to enjoy these foods, in the place of meat, you very likely have a natural vegetarian. Do not worry if the rest of the family isn't. She can easily "eat around' the meat in a well-balanced family meal setting. You will find it easier to deal with vegetarianism than it sounds if you don't make a big thing of it. Just leave the ground meat out of a small amount of tomato sauce, or simply buy marinara sauce to put on her spaghetti, with a bit of grated cheese. And keep the beans and rice veggies and the fruits coming! Not saying she is a vegetarian, but it sounds like it. My daughter's pediatrician was appalled, but later when she was a healthy teenager, he bragged to others in the office, "This young lady became a vegetarian on her own at age four!".