Hi there! Congrats on your new tegu! It is a columbian B/W.
I would also advise not to feed bologna; try ground turkey pieces, chicken, etc. For a baby tegu, also mealworms and crickets are good for their young digestive tracks. Processed food such as bologna (processed lunch meats) are not healthy for us, thus. They contain high levels of sodium, preservatives, and chemicals in general.

Good luck with the new addtion!

Greg