Protein Payout: 1 cup (cooked), 41 calories, 5 grams of protein
Popeye’s favorite veggie is a great source of not only protein but also vitamins A and C, antioxidants and heart-healthy folate. One cup of the green superfood has nearly as much protein as a hard-boiled egg—for half the calories. Looking to get the biggest nutritional bang for your buck? Be sure to steam your spinach instead of eating it raw. This cooking method helps retain vitamins and makes it easier for the body to absorb the green’s calcium content. Add a handful to soups, omelets, pasta dishes and veggie stir-fries, or simply steam it and top with pepper, garlic, olive oil and a squeeze of lemon. And don’t feel like you have to double down on the greens. Spinach is one of the 10 greens healthier for you than kale.