Solution:
To include complementary proteins in a vegetarian or vegan diet there are many different ways. Some of them are written here of food pairings that provide complementary proteins:
• soups or stews that include legumes and grains
• salads made with beans and nuts or seeds
• a peanut butter sandwich on whole-grain bread
• hummus with whole-wheat pita bread
• tofu or tempeh with brown rice or quinoa
• tofu stir-fry with whole-grain noodles and peanuts
• beans and brown rice
• yogurt with sunflower seeds or almonds
