Christmas圣诞Italian意式
Classic Beef Lasagna经典牛肉千层面
A 8-serving recipe with a 120-minute beginner workflow, exact seasoning and visible checkpoints.牛肉番茄酱与面片、奶酪层层叠好，烤成一盘适合多人分食的千层面。
BEGINNER FIELD GUIDE新手做饭说明书
Before you turn on the heat先备齐，再开火
Wash hands & produce洗手、洗菜洗手、洗菜Lava manos y verduras손·채소 씻기
Keep raw meat apart生熟分开生熟分開Lo crudo, aparte날것은 따로
Measure first先量好先量好Mide antes먼저 계량
Mitts for hot pans端热锅戴手套端熱鍋戴手套Guantes para lo caliente뜨거운 팬은 장갑
Check with a thermometer用温度计确认用溫度計確認Comprueba con termómetro온도계로 확인
- Dice 1 onion to 5 mm; mince 3 garlic cloves. Use 1½ lb / 680 g ground beef, 2 tbsp tomato paste, one 28-oz / 800-g can crushed tomatoes and 1 tsp fine salt. In a bowl, measure 15 oz / 425 g ricotta, 1 large egg, ½ cup of the 1 cup grated parmesan and ¼ cup chopped basil. Shred 16 oz / 450 g mozzarella. Use 12 no-boil lasagna sheets and a 23×33-cm dish.1洋葱切5毫米丁，3瓣蒜切末。用680克牛肉末、2大匙番茄膏、1罐800克番茄碎、1小匙细盐。碗中备425克乳清奶酪、1个大鸡蛋、1杯帕玛森碎中的½杯、¼杯罗勒碎。450克马苏里拉擦丝。用12张免煮千层面片和23×33厘米烤皿。
Written for 8 servings · cooking more? Use batches按 8 人份写 · 加量请分批按 8 人份寫 · 加量請分批Para 8 porciones · si haces más, por tandas8인분 기준 · 늘리면 나눠 조리
Full safety & prep notes完整安全与备料说明完整安全與備料說明Notas completas de seguridad안전·준비 전체 안내
These instructions use the base recipe: 8 servings. Scaling ingredients does not scale pan size or cooking time. Use batches and verify the stated checkpoints.以下按原方8人份写。改变份量不会自动改变锅大小或烹饪时间；增加份量请分批，并核对每步判断点。
- Wash hands with soap for 20 seconds. Rinse fresh produce under running water; dry leaves with a clean towel before cutting. Stabilize the board on a damp towel.用肥皂洗手20秒；蔬果用流动水洗净，叶菜用干净毛巾沥干；砧板下垫湿毛巾防滑。
- Use measuring spoons: 1 tbsp = 15 ml; 1 tsp = 5 ml. Measure the ingredient list before starting. Water used below is additional tap drinking water.用量匙：1大匙15毫升，1小匙5毫升；开始前按食材表量好。下文用水另备可饮用水。
- Keep raw meat/seafood and its utensils separate from ready-to-eat food. Do not wash raw poultry. Wash hands 20 seconds after contact; use a clean plate for cooked food and a food thermometer.生肉海鲜及器具与即食食物分开；不洗生禽肉；接触后洗手20秒，熟食用净盘，并用食品温度计。
- Use a rimmed sheet pan, oven mitts and spatula. Set hot pans on a heatproof trivet, never directly on a bare table.备带边烤盘、隔热手套、锅铲；热盘放耐热垫，不直接搁桌面。
Ingredients食材
- Ground beef牛肉末1.5 lb磅
- Onion洋葱1
- Garlic大蒜3 cloves瓣
- Tomatoes番茄28 oz盎司
- Tomato paste番茄膏2 tbsp大勺
- Lasagna sheets千层面皮12
- Ricotta里科塔奶酪15 oz盎司
- Mozzarella马苏里拉16 oz盎司
- Parmesan帕玛森奶酪1 cup杯
- Egg鸡蛋1
- Basil罗勒0.25 cup杯
- Fine salt细盐1 tsp小勺
Method做法
Brown the beef and onion together in a large pot, breaking up the meat with a spoon as it cooks.
大锅里把牛肉末和洋葱一起炒，边炒边用勺子把肉弄散。
The thickest center reads 160°F (71°C) on a food thermometer; color alone is not proof.食品温度计测最厚中心达160°F (71°C)，不能只看颜色。
Common mistake & quick fix容易错在哪，怎么补救
If below the target, keep cooking in 2-minute increments and measure again; clean the thermometer before checking cooked food.温度未达标时，每次继续加热2分钟再测；测熟食前先清洁探针。
Stir in the garlic and tomato paste.
拌入蒜和番茄膏。
Garlic smells fragrant and is pale gold at most.蒜出香味，最多浅金色。
Common mistake & quick fix容易错在哪，怎么补救
Brown garlic tastes bitter: take the pan off heat, wipe it and restart with fresh garlic.蒜变褐会苦：离火擦锅，换新蒜重来。
Add the tomatoes and salt and let it simmer, stirring every 5 minutes.
加番茄和盐煮着，每5分钟搅一次。
Small bubbles break gently across the surface.表面轻轻冒小泡。
Common mistake & quick fix容易错在哪，怎么补救
If bubbling hard, lower the heat. Scrape the bottom every 5 minutes so nothing sticks.滚得太猛就调小火；每5分钟刮一次锅底防粘。
Set a rack in the middle of the oven and preheat to 375°F (190°C).
烤架放到烤箱中层，预热到375°F (190°C)。
The preheat light or signal confirms the set temperature.预热指示灯或提示音确认温度已达标。
Common mistake & quick fix容易错在哪，怎么补救
Choose bake, not broil/grill; wait for the preheat signal before loading food.选烘烤而非顶部炙烤，等预热提示后放食物。
Stir the ricotta mixture until it's even.
把乳清奶酪混合物拌匀。
The dressing is smooth and evenly cloudy, without lumps.汁顺滑均匀微浑，没有结团。
Common mistake & quick fix容易错在哪，怎么补救
If thick or lumpy, stir 20 more seconds; add water 1 tsp at a time, at most 3 extra tsp. Oil separation is normal: stir again before pouring.稠或结团就再搅20秒，每次加1小匙水，最多3小匙。油水分层正常，倒前再搅。
Layer sauce, 4 sheets, ricotta, and mozzarella three times, then finish with sauce, mozzarella, and the rest of the parmesan.
依次铺酱、4张面片、乳清奶酪、马苏里拉，重复三次，最后铺酱、马苏里拉和余下帕玛森。
Common mistake & quick fix容易错在哪，怎么补救
Spread with a spatula; uneven layers cook unevenly.用刮刀抹平，不平会熟得不匀。
Cover the dish with foil and bake.
盖上铝箔，放进烤箱烤。
Sauce bubbles at the edges.边缘酱汁冒泡。
Common mistake & quick fix容易错在哪，怎么补救
Put a sheet pan below to catch drips.下层放烤盘接滴落。
Take off the foil and bake again.
揭开铝箔，再烤一次。
Cheese is browned and the center reads 165°F (74°C).奶酪上色，中心达165°F (74°C)。
Common mistake & quick fix容易错在哪，怎么补救
If below 165°F (74°C), bake 5 more minutes and measure again.未到165°F (74°C)再烤5分钟重测。
Let it rest before cutting so the layers hold together.
先静置一会儿再切，层次才不散。
Juices have settled and slices hold their shape when cut.汁水回流，切开能保持形状。
Common mistake & quick fix容易错在哪，怎么补救
Leftovers: into the fridge within 2 hours (1 hour on a hot 90°F+ day), eat within 3 days, and reheat to 165°F (74°C).吃不完的2小时内放冰箱（天热超90°F就1小时内），3天内吃完，回热要热到165°F (74°C)。
Know your ingredients认识食材
Ingredients explained食材讲解
Ground beef牛肉末Iron and B12 rich. Chuck for braises, sirloin for quick cooking; marbling = flavor.富含铁和B12。炖选肩肉，快炒选西冷；有雪花纹更香。
Onion洋葱Flavor base of most savory cooking. Yellow for cooking, red raw. Firm, dry skins = fresh.咸味菜的底味。黄洋葱做菜，紫洋葱生吃。外皮干、紧实为新鲜。
Garlic大蒜Crush and rest 10 min before heating to keep more allicin. Avoid sprouted cloves.拍碎静置10分钟再加热，保留更多大蒜素。发芽的别用。
Tomatoes番茄Lycopene + vitamin C. Pick heavy, fragrant ones; never refrigerate or they turn mealy.含番茄红素和维C。选沉、有香气的；别冷藏，会变粉。
- Tomato paste番茄膏
Concentrated tomato for depth; fry 1–2 min until brick red. Tubes keep longer than cans.浓缩番茄膏增加厚度；炒1–2分钟到砖红色。管装比罐装保存更久。
Lasagna sheets千层面皮No-boil lasagna sheets skip a step; make sure every sheet is covered in sauce.免煮千层面皮省一步；每片都要被酱汁盖住。
Ricotta里科塔奶酪Light, fresh, mild. Drain in a sieve 20 min for fillings that don't weep.清淡新鲜。筛网沥20分钟，馅料不出水。
Cookware厨具
- Knife, stable board, measuring cups/spoons, mixing bowl, spoon and sieve刀、稳定砧板、量杯量匙、拌碗、勺和筛子
- Large pot, 23×33-cm dish, foil, sheet pan, food thermometer大锅、23×33厘米烤皿、铝箔、烤盘、食品温度计
Make it a balanced meal营养搭配建议
Balance the pasta: keep portions to ~1.5 cups and add a big salad or roasted broccoli for half the plate.意面平衡：一人约1.5杯，另外半盘留给沙拉或烤西兰花。
Why it works: aim for half the plate vegetables, a quarter protein, a quarter whole grains or starch — then let one rich dish be the star.搭配思路：半盘蔬菜、四分之一蛋白、四分之一主食；一桌里只让一道浓郁的菜当主角。
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