You can give your pet vegetarian food. The right balance of different plant based sources of protiens οΌ eg. beans, carrots, potatoes, whole grains, corn etcοΌ can still provide essential amino acids, Eggs are excellent souces of protiens. You can introduce non veg food chicken soup, plain shredded chicken gradually over a period of time..
Since your pet is 2 months old..you could consider starter food upto 3 months of age which has balanced nutrition..Any new food that you want to introduce should be given gradually.