If you buy lunch out five days a week in any Australian capital city, you're spending $80–$120 per week on a single meal. That's $4,000–$6,000 per year, before breakfast, dinner, or the evening takeaway. Meal prep is the most financially impactful food habit you can develop — but only if you do it in a way that's actually sustainable. Here's how to do it properly, with real numbers.
Try it: Use our Meal Prep Cost Calculator to compare the cost of your current eating habits against a meal-prepped alternative.
How Much Can Meal Prep Actually Save?
Let's run the numbers honestly. The comparison that most people use — café lunch vs homemade lunch — is stark:
5 café lunches/week: Average $18–$22 each in Sydney/Melbourne = $90–$110/week = $4,680–$5,720/year
5 homemade lunches/week: Chicken and rice bowl with vegetables = approx. $3.50–$5.50 per serving = $17.50–$27.50/week = $910–$1,430/year
Annual saving: $3,270–$4,810
That's a conservative estimate. If you're in a city CBD, buying a decent meal deal with a drink can easily hit $22–$28. And that's only lunch — the same logic applies to breakfast, dinner, and snacks.
The Cheapest Proteins in Australia
Protein is the most expensive macro to buy, and it's typically the centrepiece of a meal prep meal. Here are the best value options at 2026 supermarket prices:
| Protein Source | Approx. Cost (per 100g protein) | Shelf Life (cooked) | Notes |
|---|---|---|---|
| Chicken thighs (bone-in) | $2.50–$3.50 | 4 days | Cheapest meat protein; stays moist when reheated |
| Chicken breast (bulk) | $3.50–$4.50 | 4 days | Lean; can dry out if overcooked |
| Canned tuna | $2.00–$3.00 | Pantry stable | Best value protein per dollar; no cooking needed |
| Eggs (dozen) | $2.50–$3.00 | 1 week (boiled) | Versatile; hard-boil in batches |
| Legumes (lentils, chickpeas) | $1.00–$2.00 | 5 days | Cheapest of all; also high in fibre |
| Beef mince (lean) | $4.00–$6.00 | 4 days | Good for bulk cooking; bolognese, mince bowls |
| Frozen salmon portions | $5.00–$7.00 | 3 days | Omega-3s; better value frozen than fresh |
Cost Per Meal for 10 Popular Meal Prep Recipes
| Meal | Ingredients Cost (total, 5 serves) | Cost Per Serve | Protein Per Serve |
|---|---|---|---|
| Chicken and rice bowl | $17–$22 | $3.40–$4.40 | 35–40g |
| Beef and vegetable bolognese | $18–$24 | $3.60–$4.80 | 28–35g |
| Lentil and sweet potato curry | $10–$14 | $2.00–$2.80 | 18–22g |
| Tuna pasta | $12–$16 | $2.40–$3.20 | 30–38g |
| Egg fried rice | $8–$12 | $1.60–$2.40 | 18–22g |
| Grilled salmon and veg | $25–$35 | $5.00–$7.00 | 35–45g |
| Chickpea and spinach curry | $9–$13 | $1.80–$2.60 | 14–18g |
| Turkey mince and quinoa bowls | $22–$28 | $4.40–$5.60 | 35–42g |
| Overnight oats (breakfast) | $8–$12 | $1.60–$2.40 | 12–15g |
| Stir-fry chicken and noodles | $15–$20 | $3.00–$4.00 | 30–38g |
The Batch Cooking Method: A Step-by-Step Guide
The most time-efficient approach is to cook 2–3 different meals simultaneously on a Sunday (or whichever day precedes your work week). The key is to use the oven, stovetop, and no-cook components simultaneously to minimise total time.
- Roast proteins in the oven (40–50 min): Season and roast chicken thighs or a tray of salmon while you cook everything else. This runs unattended.
- Cook grains on the stovetop (20–30 min): A big pot of rice, quinoa, or pasta cooks itself after the initial setup.
- Chop and prep vegetables (15–20 min): Prep all vegetables for the week at once — roast half, steam half, leave some raw for variety.
- Prepare sauces and seasoning (10 min): A batch of stir-fry sauce, curry paste mix, or simple vinaigrette can transform identical proteins into varied meals.
Total time: 60–90 minutes for a week of lunches. That's less than the commute time most people spend going to buy lunch each day.
How Long Does Meal Prepped Food Last?
Food safety is non-negotiable. Here are safe storage guidelines for common meal prep foods:
| Food Type | Fridge (0–4°C) | Freezer (–18°C) |
|---|---|---|
| Cooked chicken | 3–4 days | 2–3 months |
| Cooked beef/pork mince | 3–4 days | 2–3 months |
| Cooked fish | 2–3 days | 2–3 months |
| Cooked rice/grains | 3–5 days | 1–2 months |
| Cooked legumes | 4–5 days | 2–3 months |
| Roasted vegetables | 4–5 days | Not recommended |
| Overnight oats | 3–4 days | Not recommended |
Best Containers for Meal Prep
Invest once in decent containers and they last years. Look for:
- Glass containers with locking lids: Microwave-safe, stain-proof, no plastic smell. Pyrex or similar — roughly $30–$50 for a set of 5.
- Divided containers: Keep wet and dry components separate until eating. Useful for salads or meals with sauces.
- Freezer-safe containers: If you're batch cooking for the freezer, ensure containers are rated for –18°C.
Common Mistakes That Make Meal Prep Unsustainable
- Too much repetition: Eating exactly the same meal five days in a row leads to burnout. Prep base components (protein, grains, vegetables) separately and combine differently each day.
- Overly ambitious first prep: Start with two meals for three days, not seven days of four meals. Build the habit before scaling.
- Forgetting sauces and seasoning: A plain chicken breast and plain rice is miserable. Build your sauce pantry: soy sauce, sriracha, tahini, coconut aminos — a tablespoon changes the entire experience of a meal.
- Not considering texture: Some foods don't reheat well (fried items, crispy things). Design meals around proteins and grains that reheat fine in a microwave.
Frequently Asked Questions
Is meal prep safe for reheating rice?
Yes, provided you cool cooked rice quickly (within 1 hour) and refrigerate it promptly. Rice contains Bacillus cereus spores that can multiply if rice sits at room temperature too long. Cool fast, refrigerate immediately, reheat until steaming hot throughout, and don't reheat more than once.
How do I add variety to meal prep without spending more time?
Prep components, not complete meals. Cook chicken, rice, and roasted vegetables separately, then combine with different sauces: soy and ginger on Monday, tahini and lemon on Tuesday, chilli lime on Wednesday. The same base becomes three different-tasting meals with minimal extra effort.
What's the cheapest complete meal I can prep?
Lentil dhal with rice comes in at approximately $1.50–$2.00 per serve and contains 18–22g of protein. It reheats well, improves after a day in the fridge, and takes 35 minutes to cook a batch of 6–8 serves. Add a fried egg on top to boost protein cheaply.