The Quick Math
The average American spends $13-$17 per meal eating out. A meal-prepped lunch or dinner costs $3-$6 per serving. That’s a 60-75% reduction per meal.
For someone eating out for lunch and dinner 5 days a week:
- Eating out: ($15 x 2 meals x 5 days) = $150/week
- Meal prepping: ($4.50 x 2 meals x 5 days) = $45/week
- Weekly savings: $105
- Monthly savings: $420
- Annual savings: $5,040
Even if you only meal prep lunches and still eat out for dinner, you save $2,500+ per year.
The Full Comparison: 3 Approaches
For a Single Person (weekday meals only)
| Approach | Weekly Cost | Monthly Cost | Annual Cost |
|---|---|---|---|
| Eating out (lunch + dinner) | $150 - $200 | $600 - $800 | $7,200 - $9,600 |
| Grocery shopping (no plan) | $90 - $120 | $360 - $480 | $4,320 - $5,760 |
| Meal prepping (planned) | $45 - $70 | $180 - $280 | $2,160 - $3,360 |
For a Couple
| Approach | Weekly Cost | Monthly Cost | Annual Cost |
|---|---|---|---|
| Eating out regularly | $250 - $350 | $1,000 - $1,400 | $12,000 - $16,800 |
| Unplanned groceries | $150 - $200 | $600 - $800 | $7,200 - $9,600 |
| Meal prepping together | $80 - $120 | $320 - $480 | $3,840 - $5,760 |
For a Family of 4
| Approach | Weekly Cost | Monthly Cost | Annual Cost |
|---|---|---|---|
| Eating out 4x/week | $350 - $500 | $1,400 - $2,000 | $16,800 - $24,000 |
| Standard groceries | $200 - $300 | $800 - $1,200 | $9,600 - $14,400 |
| Meal prepping | $120 - $180 | $480 - $720 | $5,760 - $8,640 |
The savings sweet spot: You don’t need to meal prep every single meal. Prepping just lunches for the work week (5 meals) saves most people $50-$75/week with only 1-2 hours of work on Sunday.
The Time Investment (Honest Numbers)
Meal prepping isn’t free — it costs time. Here’s what’s realistic:
| Task | Time |
|---|---|
| Weekly meal planning | 15-20 minutes |
| Grocery shopping | 30-45 minutes |
| Cooking + portioning (5 days) | 1.5 - 2.5 hours |
| Total weekly time | 2.5 - 3.5 hours |
Compare to eating out:
- Driving/walking to restaurant: 10-15 min
- Waiting for food: 10-20 min
- Eating: 20-30 min
- Total per meal: 40-65 minutes
- 10 meals out per week: 7-11 hours
Meal prepping actually saves time compared to eating out daily. You spend 3 hours once instead of 1+ hour per meal, five times.
The Cheapest Meal Prep Staples
These ingredients give the best cost-per-meal ratio:
Proteins ($1-$3 per serving)
- Chicken thighs: ~$2.50/lb (4 servings per pound)
- Ground turkey: ~$4/lb (4 servings)
- Eggs: ~$0.30 each
- Canned beans: ~$1/can (3 servings)
- Lentils (dried): ~$0.30/serving
Carbs ($0.20-$0.60 per serving)
- Rice (bulk): ~$0.20/serving
- Pasta: ~$0.25/serving
- Potatoes: ~$0.40/serving
- Oats: ~$0.15/serving
Vegetables ($0.50-$1.50 per serving)
- Frozen vegetables: ~$0.50/serving (just as nutritious as fresh)
- In-season produce: ~$0.75/serving
- Cabbage, carrots, onions: ~$0.30-$0.50/serving
Complete Meal Costs
| Meal | Approximate Cost |
|---|---|
| Chicken + rice + roasted broccoli | $3.25 |
| Bean burrito bowls | $2.50 |
| Pasta with meat sauce | $2.75 |
| Stir-fry with tofu | $3.00 |
| Overnight oats with berries | $1.50 |
| Lentil soup with bread | $2.00 |
The Hidden Savings People Miss
1. Reduced Food Waste
The average household throws away 30-40% of purchased food ($1,500/year). Meal prepping with a plan reduces waste to under 10% because you buy exactly what you need.
2. Fewer Impulse Purchases
Without a meal plan, grocery trips average 20-40% impulse buys. A list-based trip cuts this to under 10%.
3. Less Delivery Fees and Tips
A $15 meal becomes $22-$28 after delivery fees, service charges, and tip. Eliminating 3 deliveries per week saves $40-$60/week in fees alone.
4. Health Cost Reduction
Home-cooked meals average 500-700 fewer calories than restaurant meals. Long-term, the health benefits translate to fewer medical bills and better energy.
Start Simple: The Beginner Plan
Don’t try to meal prep 21 meals in your first week. Start here:
Week 1: Prep lunches only (5 portions of one recipe) Week 2: Add breakfast (overnight oats or egg muffins) Week 3: Add 3 dinners Week 4: Full week if you want, or stay at Week 3 level
The 2-recipe rule: Start with just 2 recipes per week. Cook each in bulk. Variety comes later — consistency comes first. Chicken + rice + veg in 5 containers is boring but it works, saves money, and takes 45 minutes.
The Bottom Line
| What You Prep | Time Investment | Monthly Savings |
|---|---|---|
| Lunches only | 1 hour/week | $200 - $300 |
| Lunches + dinners | 2-3 hours/week | $400 - $600 |
| All meals | 3-4 hours/week | $500 - $800 |
Meal prepping saves the average person $3,000-$6,000 per year while eating healthier and spending less total time on food. Even a minimal approach (lunches only) pays for itself immediately.
The best time to start was last week. The second best time is this Sunday.