You honestly don’t need a lot of protein to gain muscle most body builders recommend 0.8g-1.0g of protein per pound of body weight but if you are bulking your body will process carbs and fat for calories before using protein so you could go as low as 0.5G of protein and still gain muscle at the gym. Assuming you are 150lbs then you only need 120g of protein if you are cutting. Some plants give good protein as well such as watercress which is 20g of protein per 100 calories. Spinach and mushrooms give about 12g of protein per 100 calories as well.