Well, I'm a vegan homeschooling mama, so I hope I can help.
We made a poster of our own "food groups" based on my own nutrition research.
The groups we use are
Grains and grain like foods (4-6 servings)- wheat, oats, rice, quinoa and corn are the ones we eat most, though teff, barley and rye show up sometimes.
Legumes, nuts and seeds (2-3 servings)- Tofu, beans, peas, lentils, nuts, peanut butter, soymilk
Orange veggies (at least 1) - Carrots, squash, sweet potatoes
Green leafy veggies - (at least 1) - Broccoli, kale, chard, cabbage, beet greens
Other veggies - (enough to bring the total to at least 3) Avocado, eggplant, zucchini, sweet corn ...
Fruit (at least 2)
Fats (about 3 tsp) - vegetable oils, Earth Balance, Daiya (expecting that there will be more in the other parts of the diet)
Sweets (keep to one a day except for special occasions. (my kid is on the skinny and active side like her dad, and can handle a cookie or a scoop of ice 'cream' every day. I? cannot.))
We found and printed pictures from the internet, cut stuff out of magazines, and made a food group collage. Hope that helps. Obviously, your own opinions on nutrition will change how yours will work, and an omnivore or a TFer is going to have a very different poster in the end.
I kind of want to write a kids nutrition book with pages for all sorts of food groups that is punched for a spiral binding but not bound so that it can be customized for your dietary choices.
