Lasagne verdi alla bolognese: what it is, what to order, what to avoid

Overview

The first thing to fix is the colour. Real lasagne here is green — the pasta sheets are made with spinach worked into the egg dough, which turns them a muted olive rather than the pale yellow of plain egg pasta. That is not decoration. The spinach sfoglia is thinner and more delicate than the sheets sold dried in a box, and it is the reason the finished dish is soft and yielding rather than dense.

Underneath the colour, the structure is strict. Three things and only three things go between the layers: ragù alla bolognese (a long-cooked meat sauce, not a tomato sauce with mince in it), béchamel, and grated Parmigiano Reggiano. There is no ricotta, no mozzarella, no boiled egg, no sausage, no layer of tomato. The sheets are laid thin, five or six deep, each one barely holding its filling, and the tray is baked only long enough to set and take colour at the edges. What arrives is closer to a savoury custard bound by pasta than to the tall, cheese-heavy slab the word “lasagne” summons in English.

The city’s claim to it is unusually well documented. In 2003 the local branch of the Accademia Italiana della Cucina deposited an official recipe for lasagne verdi alla bolognese — the green pasta, the ragù, the béchamel, the Parmigiano — as a formal notarised act with the Bologna chamber of commerce. A deposited recipe is not a law and no inspector enforces it, but it is a checkable fact rather than folklore: the definition of the dish exists on paper, and it specifies green.

This is a native Bolognese dish in the strict sense. The wider region has its own baked pastas, but the green-sheet, ragù-and-béchamel construction is the city’s own, and the registered recipe is a Bolognese one.

What to order

You will mostly see it written two ways. Lasagne verdi alla bolognese is the full, honest name — verdi, green, being the part that matters. Lasagne alla bolognese, without the verdi, means the same thing to a Bologna kitchen, because here bolognese lasagne is green by default; the word is dropped as understood, not because the pasta is yellow.

It arrives as a primo, a first course, in a portion smaller than the English lasagne habit expects — this is one of several courses, not the whole meal on a plate. A single serving, often cut from a larger tray and reheated to order, is normal and correct.

A few words worth having:

• sfoglia — the rolled sheet of fresh egg pasta itself. A place that makes its own sfoglia will often say so, and it is the single biggest difference between a good tray and a dull one.
• sfoglina — the (usually woman) pasta-maker who rolls it by hand. The word appears on signs and menus and is a genuine signal, not a marketing one.
• ragù — always the meat sauce. If a menu offers you “lasagne al ragù”, that is this dish; “ragù” here is never a jar of tomato.

There is no vegetarian verdi to order that is still this dish: the ragù is the point. Green pasta with a vegetable filling is a different, legitimate thing, but it is not lasagne alla bolognese and a kitchen that sells it as such is telling you something.

What to avoid

The failures are mostly failures of colour and of layering, and both are visible before you taste anything.

Yellow pasta is the first warning. A lasagne built on plain egg or dried box sheets, pale and stiff, is not the Bolognese dish however good the sauce — the green sfoglia is constitutive, not a garnish. If the cross-section on the plate is uniformly pale, you have the wrong version.

A red, tomato-soaked lasagne is the second. The trays sold abroad and in tourist-facing rooms are wet with tomato and often stringy with melted mozzarella; the Bolognese one is the colour of the ragù and the béchamel, a muted brown-and-cream, not scarlet. A scarlet cross-section means a tomato sauce has replaced the ragù.

Ricotta in the layers is a southern-Italian and American habit that has no place here, and neither does a hard-boiled egg, a common older-style addition further south. Seeing either is a reliable sign the kitchen is cooking a generic “Italian lasagne” for an audience that expects one.

One honest ambiguity: lasagne is genuinely made ahead and reheated, everywhere, because it sets better rested than fresh from the oven. So a reheated portion is not a bad sign in this one case — the tell is not freshness but colour, sheet-thinness and the absence of tomato.

Practicalities

A portion in an ordinary trattoria runs roughly €9 to €14 as a primo, a little more in the smarter dining rooms of the centre. A number well below that range usually means box pasta and a shortcut sauce rather than a bargain; a number well above it is buying the address, not a better tray, because the dish itself does not have a luxury version — its ingredients are cheap and its virtue is labour.

It is a lunch and Sunday dish more than an evening one, and it is at its most reliable where the kitchen makes its own sfoglia, which is more common at midday. Because a good ragù is cooked for hours and the tray is assembled in advance, lasagne is one of the few things you can eat well early, before a kitchen that also does à-la-minute cooking has hit its stride.

Order it as a first course and stop there if you are not very hungry: at a proper table it is followed by a secondo, and the portion is sized on that assumption. Cards are accepted in almost every sit-down place that serves it, so this is not a cash-only situation the way a market stall would be; the small per-person coperto the city guide mentions applies here as to any Bologna meal.

Eat it hot, but not straight from a fierce oven — a lasagne that has rested a few minutes holds its layers on the fork instead of sliding apart, which is why the kitchen usually rests it before it reaches you.