What fruits, vegetables, and eggs are safe for my 4-month-old puppy?

Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. Jelly is so cute! She looks like an appropriate body condition so far, and since she is only 4 months old it is hard to know how big she will ultimately get. I recommend feeding her a normal puppy dry dog food, and feeding the recommended amount on the bag for her weight. It is safe to add in vegetables such as peas, carrots, broccoli, etc - but NO onions or garlic. Most fruits are safe too, such a berries, bananas, watermelon, etc. Hard boiled eggs are safe, but they are high in cholesterol so I wouldn't feed her more than 1/2 per day. Please keep in mind that a good quality puppy diet on its own will have ALL the nutrients and vitamins that she needs to grow appropriately, so it is not necessary to add in extra food. In fact, this could actually cause her to grow too quickly and become overweight, which can cause extra strain on the joints and predispose her to boney issues in the future. I hope this is helpful!