Eating enough protein is one of the most effective things you can do for fat loss and muscle retention, but chicken breast and protein bars every day get expensive fast. The good news: some of the most protein-dense foods are also among the cheapest. With a little planning and one or two prep sessions per week, you can reliably hit 140–180 g of protein per day for a modest grocery budget. This blueprint gives you the principles, a full week of meals and the exact routine.
Why prioritise protein?
Protein helps preserve and build muscle, especially when combined with resistance training, and it is the most filling macronutrient per calorie. Research supports roughly 1.6–2.2 g of protein per kg of body weight per day for active people trying to change their body composition [1]. For a 75 kg (165 lb) person that means 120–165 g daily. If you are unsure of your own target, the high-protein preset in our macro calculator will set it for you, and our macro splits guide explains the reasoning.
The cheapest protein sources
Prices vary by country and season, so rather than quoting exact prices, the table ranks common foods by typical cost per 25 g of protein in U.S. supermarkets. Use it as a guide and check your local unit prices.
| Food | Serving for ~25 g protein | Relative cost | Notes |
|---|---|---|---|
| Dried lentils / split peas | ~100 g dry | $ | Also high in fibre; pair with grains |
| Dried beans (black, pinto) | ~110 g dry | $ | Cook in bulk; freeze portions |
| Eggs | 4 large | $ | Versatile; complete protein |
| Whole chicken thighs / leg quarters | ~120 g cooked meat | $ | Cheaper than breast; more flavour |
| Canned tuna or sardines | 1 can (~120 g drained) | $$ | No cooking; watch sodium |
| Greek yogurt (store brand, tubs) | ~250 g | $$ | Great breakfast and snack base |
| Cottage cheese | ~220 g | $$ | Slow-digesting casein protein |
| Firm tofu | ~170 g | $$ | Plant protein; absorbs marinades |
| Whey protein powder (bulk) | 1 scoop | $$ | Convenient per gram if bought in bulk |
| Ground turkey / lean beef | ~110 g cooked | $$$ | Buy family packs on sale |
Budget meal prep principles
- Buy staples in bulk: rice, oats, dried legumes, frozen vegetables and family packs of meat.
- Use frozen produce: frozen vegetables and berries are nutritionally comparable to fresh and don't spoil.
- Cook 2–3 proteins, 2 carbs and 2–3 veg per session and mix them into different meals with sauces and spices.
- Repeat breakfasts: most people are happy eating the same breakfast all week, which simplifies shopping.
- Plan around sales and swap proteins freely using the table above.
The 7-day high-protein blueprint
This sample plan targets roughly 2,000 kcal and 150–170 g of protein per day for a moderately active adult. Adjust portion sizes up or down to match your calorie target from the TDEE calculator.
| Day | Breakfast | Lunch | Dinner | Snack |
|---|---|---|---|---|
| Mon | Greek yogurt, oats & berries | Chicken thigh, rice & broccoli | Lentil & sweet potato chilli | Cottage cheese & apple |
| Tue | 4-egg veggie scramble & toast | Lentil chilli (leftover) & rice | Tuna pasta with peas | Whey shake & banana |
| Wed | Greek yogurt, oats & berries | Chicken, rice & broccoli | Tofu stir-fry with frozen veg & noodles | Hard-boiled eggs (2) |
| Thu | Overnight oats with whey | Tuna & bean salad | Turkey meatballs, rice & green beans | Cottage cheese & berries |
| Fri | 4-egg veggie scramble & toast | Turkey meatballs & rice (leftover) | Black bean & chicken burrito bowls | Greek yogurt |
| Sat | Protein pancakes (eggs, oats, banana) | Burrito bowl (leftover) | Sheet-pan chicken thighs & potatoes | Whey shake |
| Sun | Greek yogurt, oats & berries | Egg fried rice with peas | Sardines on toast & side salad | Cottage cheese |
Weekly grocery list
| Category | Items |
|---|---|
| Protein | 2 kg chicken thighs, 500 g ground turkey, 3 cans tuna, 1 can sardines, 400 g firm tofu, 18 eggs |
| Dairy | 2 kg Greek yogurt, 1 kg cottage cheese, milk |
| Legumes & grains | 500 g dried lentils (or 3 cans), 2 cans black beans, 1.5 kg rice, 1 kg rolled oats, pasta, noodles, whole-wheat bread, tortillas |
| Produce | Bananas, apples, onions, garlic, sweet potatoes, potatoes, salad greens |
| Frozen | Broccoli, mixed stir-fry veg, peas, green beans, mixed berries |
| Pantry | Canned tomatoes, olive oil, soy sauce, chilli powder, cumin, salsa, whey protein |
The 2-hour Sunday prep routine
- 0:00 — Preheat the oven. Start a large pot of rice and a pot of lentils.
- 0:10 — Season chicken thighs and put them on a sheet pan with potatoes; roast 35–40 minutes.
- 0:20 — Start the lentil and sweet potato chilli in a large pot; simmer.
- 0:30 — Hard-boil 8 eggs; prepare overnight oats for two days.
- 0:45 — Roll turkey meatballs and bake on a second tray.
- 1:15 — Steam frozen broccoli and green beans.
- 1:30 — Cool everything, portion into containers and label with dates.
- 1:50 — Clean up. Prep a smaller midweek session on Wednesday for the second half of the week.
Storage and food safety
According to USDA guidance, cooked leftovers should be refrigerated within two hours and eaten within 3–4 days, or frozen for longer storage [2]. For a full week of prep, freeze the meals for days 5–7 and move them to the fridge the night before. Reheat to an internal temperature of 74 °C (165 °F). Use airtight containers and cool large batches quickly by dividing them into shallow containers.
Make it yours
This blueprint is a template, not a prescription. Swap proteins based on local prices, scale portions to your calorie target, and adapt for vegetarian or halal diets using the substitutions in the table above. For a personalised version with automatic calorie matching, meal swaps and a printable grocery list, try our free AI meal planner. If you are prepping to lose fat, read Calorie Deficit 101 to set the right deficit first.
Put this into practice
Generate your own 7-day plan →References
- Morton RW, Murphy KT, McKellar SR, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. Br J Sports Med. 2018;52(6):376–384.
- U.S. Department of Agriculture, Food Safety and Inspection Service. Leftovers and Food Safety. FSIS; updated 2020.
- Jäger R, Kerksick CM, Campbell BI, et al. International Society of Sports Nutrition position stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20.
- Li SS, Blanco Mejia S, Lytvyn L, et al. Effect of plant protein on blood lipids: a systematic review and meta-analysis of randomized controlled trials. J Am Heart Assoc. 2017;6(12):e006659.
Educational content only, not medical advice. See our medical disclaimer.