Recursion Lasagna

Recursion Lasagna nests three complete lasagnas one inside the next, the smallest fully baked first as the base case, the largest built last to hold the whole table. Slice straight through the center and every piece reveals the stack, ring by ring, all the way down to the one that stopped it.

Serves 12 · as served on Bluesky ↗

Recursion Lasagna
Now here's a build that starts small and works its way out, kind of like nesting mixing bowls before you put them away. My sister's boy Dmitri was trying to explain his computer science homework to me over Labor Day — something about a function that keeps calling itself until it finally hits a spot where it stops — and it clicked for me the second I pictured a lasagna baked inside a lasagna inside a lasagna. So that's the plan here: a little four-inch lasagna gets fully baked first and that's your stopping point, then it rides inside a medium pan of more noodles and sauce, and that whole thing rides inside the big nine-by-thirteen for the table. Same meat sauce and cheese filling feed all three, just portioned out as the pans get bigger. When you finally slice down the center you get tidy nested squares like rings in a tree stump, and nobody believes there's a whole little dinner hiding in the middle until you cut it open.
— the chef

Ingredients

Fresh

Fridge

Pantry

Spice rack

Directions

  1. Heat the olive oil in a large skillet over medium heat and cook the onion and garlic until soft, about 5 minutes. ⏱ 5 min
  2. Add the ground beef and Italian sausage, breaking it up with a spoon until fully browned. ⏱ 8 min
  3. Stir in the crushed tomatoes, tomato paste, oregano, dried basil, and a pinch each of salt and black pepper; simmer uncovered to build the one sauce that will feed all three lasagnas. ⏱ 20 min
  4. Boil the lasagna noodles until just shy of al dente, drain, and lay them flat — this is the raw material you'll keep re-cutting smaller as the layers shrink.
  5. Stir together the ricotta cheese, eggs, half the parmesan cheese, and half the fresh basil to make one bowl of cheese filling for all three builds.
  6. Butter a 4-inch ramekin and cut a few lasagna noodles into tiny rounds to fit. Layer noodle, a spoonful of the sauce, a dab of the cheese filling, and a sprinkle of mozzarella cheese, repeat once more, then cover with foil — this is the base case, the smallest complete lasagna, and it does not call itself again. Bake at 375 degrees for 15 minutes. ⏱ 15 min
  7. Let the mini lasagna cool a few minutes, run a knife around the edge, and turn it out of the ramekin in one piece — that's the value you'll return up the stack.
  8. Butter an 8-inch square dish and cut more lasagna noodles to fit. Layer noodle, sauce, cheese filling, and mozzarella cheese around the edges, leaving a well in the center sized for the ramekin. Nestle the base-case lasagna into that well, keep layering around and over it to the rim, cover, and bake at 375 degrees for 25 minutes. ⏱ 25 min
  9. Cool 10 minutes, then turn the medium lasagna out of its dish in one piece.
  10. Butter a 9x13 dish and layer the remaining lasagna noodles, sauce, cheese filling, and mozzarella cheese around the edges just as before. Set the medium lasagna in the center, finish the top layer around it, scatter the last of the parmesan cheese over everything, and bake uncovered at 375 degrees for 35 minutes until bubbling and golden. ⏱ 35 min
  11. Rest the whole tray 15 minutes, scatter the remaining fresh basil over the top, then cut straight down through the center so every slice shows the nested squares all the way to the one that stopped the recursion, and serve.

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