What Ingredients Should I Buy If I Want to Cook at Home More?

You want to cook at home more. Not a fantasy version where you're making duck confit on a Tuesday—just dinner, on a regular weeknight, without wanting to order pizza instead.

The trick isn't a 50-item pantry list. It's a small set of ingredients that do a lot of work. I'm going to walk through a realistic scenario, using actual research, to show what to buy and why.

Pick a target: dinner at home 6 nights a week

Let's say you're a busy person who eats out or orders in most nights. You've heard home cooking is cheaper and healthier. Fine. But vague goals don't stick. So set a number: 6 dinners a week.

Why 6? Because there's a clear dose-response in the data. In a study of 9,491 US adults, people who cooked dinner at home 6–7 times a week ate fewer calories, less fat, and less sugar than those who cooked 0–1 times a week (Wolfson & Bleich, Public Health Nutrition, 2015). The differences: 9,054 kJ vs. 9,627 kJ, 81 g vs. 86 g of fat, 119 g vs. 135 g of sugar. That's not nothing. And a more recent study found that each additional home-cooked dinner was linked to less ultra-processed food in your diet (Wolfson et al., J Acad Nutr Diet, 2024). So your ingredient strategy should support that frequency.

Build a pantry that makes cooking fast

To hit 6–7 dinners, you need stuff that's versatile, shelf-stable, and quick. Olive oil. Onions. Garlic. Canned tomatoes. Dried pasta. Rice. Lentils. Eggs. Frozen vegetables. Basic spices.

Not glamorous. But these are the backbone of a hundred meals. If you have pasta, canned tomatoes, garlic, and olive oil, you have dinner in 20 minutes. Add frozen peas and you've got vegetables. This isn't about gourmet cooking; it's about removing the excuse to order takeout.

A stocked pantry also cuts food waste. US households waste about 164 pounds of food per person per year (US EPA). Buying ingredients you'll actually use helps shrink that number.

Make vegetables convenient

One of the biggest wins from home cooking is eating more vegetables. In a UK study of 11,396 adults, those who ate home-cooked main meals more than five times a week ate 62.3g more fruit and 97.8g more vegetables daily than those who ate home-cooked meals fewer than three times a week (Mills et al., Int J Behav Nutr Phys Act, 2017). That's about an extra serving of fruit and two extra servings of vegetables every day.

To get there, buy vegetables that are easy to prepare: pre-washed salad greens, baby carrots, cherry tomatoes, frozen stir-fry mixes, canned beans. Don't overbuy fresh produce that will rot. Buy a mix of fresh and frozen. Frozen vegetables are just as nutritious and last for months. Keep them visible and ready to toss into a pan.

Protein: buy what you'll actually cook

Protein is often the center of the plate. But buying expensive cuts you're scared to cook leads to waste. Instead, buy forgiving proteins: eggs, canned tuna, chicken thighs, ground turkey, tofu, Greek yogurt. These cook in multiple ways and don't require precise timing.

Cost matters too. In 2023, food away from home accounted for 58.5% of total US food spending—the highest share since the 1930s (USDA ERS, Oct 2024). Labor is a big reason: about 64 cents of every dollar spent on food away from home goes to labor, versus 46 cents for food at home (USDA ERS, 2023). When you buy raw ingredients, you're paying for food, not someone else's labor.

Use the 3-item rule for weeknight meals

To make cooking a habit, simplify. I use a 3-item rule: each weeknight meal has a base (pasta, rice, tortilla), a protein, and a vegetable. That's it.

Examples: whole-wheat pasta + canned chickpeas + frozen spinach. Rice + scrambled eggs + frozen stir-fry vegetables. This framework ensures balance without complexity. And it aligns with research: cooking dinner at home 7+ times a week was associated with a 3.57-point higher Healthy Eating Index-2015 score compared to cooking 0–2 times a week (Wolfson, Leung & Richardson, Public Health Nutrition, 2020). You don't need fancy recipes; you need a repeatable formula.

One caveat: this rule assumes you have basic cooking skills. If you can't dice an onion, start there. YouTube is free.

Don't ignore the mental health boost

Cooking isn't just nutrition. A seven-week cooking course with 657 participants produced mental wellbeing gains still evident six months later (Rees et al., Frontiers in Nutrition, 2022). And a study of 658 people found that small daily creative acts like cooking made people feel more relaxed, happier, and 'flourishing' the next day (Conner et al., Journal of Positive Psychology, 2018).

So the ingredients you buy aren't just fuel—they're tools for a hobby that supports your mood. Choose ones you enjoy working with. If you love the smell of garlic sautéing in olive oil, buy garlic. If kneading dough relaxes you, buy flour and yeast. The sensory experience matters.

Here's a quick list of core ingredients to get started:

• Olive oil, onions, garlic
• Canned tomatoes, pasta, rice
• Eggs, canned beans, frozen vegetables
• Basic spices: salt, pepper, cumin, paprika

With these, you can make dozens of meals. And remember: the goal is progress, not perfection. Start with 3–4 home-cooked dinners a week and build up. The research shows that even cooking a meal from scratch once a week was associated with a 23% lower dementia risk in men and 27% lower in women in a Japanese cohort (J Epidemiol Community Health, 2026). So every meal you cook counts.

Sources

• Rees et al. (Frontiers in Nutrition, 2022) - https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2022.802940/full
• Wolfson & Bleich (Public Health Nutrition, 2015) - https://pubmed.ncbi.nlm.nih.gov/25399031/
• Mills et al. (Int J Behav Nutr Phys Act, 2017) - https://ijbnpa.biomedcentral.com/articles/10.1186/s12966-017-0567-y
• USDA ERS Amber Waves (Oct 2024) - https://www.ers.usda.gov/amber-waves/2024/october/u-s-consumers-increased-spending-on-food-away-from-home-in-2023-driving-overall-food-spending-growth
• Home cooking and dementia (J Epidemiol Community Health, 2026) - https://www.eurekalert.org/news-releases/1120744