So you had, like, 12 or 13 whole eggs yesterday? Just checking. If so, good start. If not, we generally don't "count" the protein in predominantly carb or fat foods (oatmeal, bread, peanut butter, etc.) because it's a lower quality protein. In my guesstimation, you had less than 100grams of decent protein listed yesterday (depending on how many eggs you knocked back).
Nothing wrong with training a muscle group once per week if the volume and intensity is sufficient. Like Gorilla said, increasing the volume of your current leg day would go towards improving it, and/or dropping the walking lunges to make room for something more substantial that lends itself more towards moving actual weight, like starting the session with some heavy, lower rep front squats.