Do you have any recommendations for food or drink that are both healthy, tasty and also contain a considerable amount of protein since I am looking to go to the gym? I specifically am looking for breakfast meals but other suggestions for snacks or other times of the day would also be quite useful
Yes, here are some healthy and protein-rich food and drink options:

Breakfast:

- Greek yogurt with berries and nuts
- Peanut butter and banana smoothie
- Eggs, either scrambled, boiled or as an omelette with vegetables
- Oatmeal with almond milk, cinnamon, and protein powder
- Chia seed pudding with almond milk and berries

Snacks:

- Roasted almonds or other nuts
- Hard-boiled eggs
- Turkey or chicken breast slices
- Hummus with carrots, celery or whole grain crackers
- Tuna salad with whole grain crackers or lettuce leaves

Other meal options:

- Grilled chicken breast or fish with quinoa and steamed vegetables
- Lentil soup
- Black bean tacos or burrito bowls with brown rice and veggies
- Turkey chili with kidney beans
- Tofu stir-fry with vegetables and brown rice

You may also wish to incorporate a regiment of supplements, depending on your underlying health measurements.  Remember to also drink plenty of water and get adequate rest to support your workout routine.
How much protein and water should I get on days I go to the gym?
The amount of protein you need depends mainly on your activity habits and body weight. Most research suggests that a very active person, doing more than one hour a day of exercise, should eat between 1.2 to 2 grams of protein per kilogram of body weight per day. People who are not active should consume around 0.8 grams of protein daily. Note that this also depends on your training objectives. Since proteins play an essential role in rebuilding and repairing your muscles, you will need to ingest more if you want to gain muscles and less if your objective is to lose weight. Your protein intake does not need to be adjusted depending on whether it is an exercise day. Consider eating a balanced diet every day. Note also that those are only some of the things to consider. I would suggest you to also looking at carbohydrates and fats.

An adequate daily fluid intake would be around 3.7 liters of water per day for men and 2.7 liters of water per day for women. You must adjust this depending on the rate at which you lose water, e.g., by sweating during exercise. During exercise days, consider increasing your intake to compensate for losses. Note also that those recommendations concern the overall fluid intake, which also accounts for the water in your food.

Please note that those quantities correspond to an average person, but each human is unique, and you may need some specific regimes. I suggest consulting a health professional for more pertinent and tailored advice.