I have three ideas for this project-
1. u can create a collage on the food items in your diet... eg. fruits, vegetables, tea, coffee, chocolates, an every other food item u eat. can also include junk food as even that is a food item
2.U can draw a food triangle... there are many images available in google
3. u can draw draw a pie chart with divisions showing all the components of food i.e, carbs, fats, proteins, vitamins and minerals. Images are available even for this in google.
Hope u liked my ideas.. best of luck for ur project :-)