vegetable proteins (grains, legumes, nuts, seeds, and other vegetables) are incomplete proteins because they are missing, or do not have enough of, one or more of the essential amino acids. That's not such a big deal. You already know that grains and legumes are rich in complex carbohydrate and fiber. Now you learn that they can be an excellent source of protein as well; it just takes a little bit of work and know-how. By combining foods from two or more of the following columns—voilà—you create a self-made complete protein. You see, the foods in one column may be missing amino acids that are present in the foods listed in another column. When eaten in combination at the same meal (or separately throughout the day), your body receives all nine essential amino acids
Grains Legumes Nuts/Seeds
Barley Beans Sesame seeds
Bulgur Lentils Sunflower seeds
Cornmeal Dried peas Walnuts
Oats Peanuts Cashews
Buckwheat Chickpeas Pumpkin seeds
Rice Soy products Other nuts
Pasta
Rye
Wheat
Also, by adding small amounts of animal protein (meat, eggs, milk, or cheese) to any of the groups, you create a complete protein
Your body has 24 hours about to complete a protein chain.
So if you have beans at breakfast in your eggs.
Then rice at dinner.
You will still complete that protein and your body will be able to use said protein.