Hi, and welcome! I hope things are off to a good start.
Breakfast protein can include any low fat protein you would eat at other times of the day. Do you eat animal products? If so, choose from lean meats, chicken, and fish. What about yogurt? If you don't eat animal products, you can make a smoothie with protein powder, vegan sausage or other meat substitute products, foods made with pea or other vegetable proteins, beans, vegan low fat cheese, vegan yogurts (although many are high fat).
About added fats: over the course of each day, you can add one Tablespoon of fat to either your cooking or the food you're eating and that can include butter, peanut or other nut or seed butter, oil such as olive oil, cheese, avocado, seeds, etc. Fats are a healthy part of a diet but too much in the diet adds excess calories that can make it harder to lose weight.
Please keep us posted!