Eggs with avocado is probably the easiest one. I make that every day for breakfast.
Another breakfast favorite is an eggs, black beans, and herbed goat cheese scramble.
Oven roasted chickpeas. They make a great snack. Coat in olive oil, season with whatever, and stick in the oven at 350 for an hour to an hour and a half, stir every 20 minutes or so. Sometimes in the last 10 minutes I'll take them out and coat them in honey.
Veggie burritos are almost a daily lunch. Stuff them to the size of your forearm and they're still reasonable in calories. Black beans, pinto beans, rice, diced tomato, avocado, yogurt, broccoli, cauliflower, corn, zucchini, bell peppers, carrots, queso fresco, lime juice, sriracha. I'm really lazy about the effort I put into making them, so I stuff everything into the food processor and turn it into something like a paste to stuff a tortilla full.
Protein cookies. Both chocolate chip and peanut butter. I just take any recipe I find that looks good, and substitute the amount of sugar for an equal amount of mashed banana. Change 1/4 flour out for protein powder (and make what's left an equal mix of whole wheat and all purpose), add an extra egg, and let the stand mixer do all the work.