Proteins

Plant Protein:

• Grains and cereals: wheat, barley, rye, corn, oatmeal, quinoa
• Legumes: peas, beans, lentils
• Nuts: Brazil, hazelnuts, peanuts, almonds etc.
• Seeds: pumpkin, sunflower, sesame
• Alternatives:
• Tofu: fake meat made from soy
• Seitan: fake meat made from wheat

Complete protein:

• A protein that contains all of the essential amino acids. All meats are complete proteins.
• Vegetarian Combinations:
• beans and rice
• hummus and pita bread
• vegetarian burgers on bread 
• split pea soup and whole grain bread

Caution:

• Proteins like peanut butter and nuts contain lots of fat. So eat these in moderation.
• Single plant foods don’t contain all of the necessary amino acids that we need, but by mixing different methods of protein, vegetarians can achieve a balanced diet.

Sources:

The New Vegetarian Cookbook

http://vegetarian.about.com/od/glossary/g/Seitan.htm

http://www.fitsugar.com/Whats-Complete-Protein-Inquiring-Vegetarians-Want-Know-165298