Pork loin is rich in thiamin, niacin, vitamin B6, and vitamin B12. B vitamins are needed for energy generation.
Salmon is a flexible, healthful protein when canned, smoked, or baked. In addition to protein, salmon is rich in omega-3 fatty acids.
Sardines are high in protein, vitamin B12, vitamin D, calcium, and minerals.
Salmon and sardines are fishy, but cod is a moderate, easy-to-use high-protein seafood. Dinner is healthful and protein-rich.
Greek yogurt is high in protein, probiotics, and essential nutrients like calcium and vitamin D.
Eggs can be hard-boiled, scrambled, sunny side up, roasted, or used in other ways as a cheap and healthy protein source.