How to eat well as a budget traveler without always sacrificing for cost — the specific situations where food spending pays off.

The food-as-cultural-experience principle: in any destination with a distinctive food culture, the best cheap meals tell you more about the place than any museum. A home-cooked Laotian meal at a family restaurant in Luang Prabang for $4 is more valuable than a hotel breakfast for $12. The correlation between 'cheap' and 'authentic' is often strongly positive in food culture.

The situations where spending more on food is right: a cooking class in Thailand, Vietnam, or Morocco is both an experience and a skill acquisition. The cost ($20-35) is reasonable and you take the recipes home. A tasting menu at a local restaurant for special occasions or when you find a genuinely remarkable chef. A market tour with a local guide who knows every stall.

The situations where expensive food is rarely worth it on a budget trip: airport and tourist-center restaurants where you're paying a location premium. Restaurants in tourist zones that are mediocre versions of the local cuisine at 3x the price. Coffee shops in tourist areas that charge Western prices for coffee that's less good than the local coffee shop 2 streets away.

The grocery store strategy in expensive countries: supermarket prepared foods in Europe, Australia, and Japan represent excellent value. The French supermarket cheese and baguette approach to lunch is not deprivation — it's one of the great pleasures of budget travel in France.