Mexican Feast Planning: A Complete Menu for 20 Guests

Why Mexican Food Is Perfect for Large Gatherings

If you have ever tried to cook a three-course dinner for 20 people, you know the stress: timing multiple dishes to arrive simultaneously, running out of oven space, serving food that gets cold while you plate up. Mexican food eliminates virtually all of these problems, which is why it is the smartest choice for large-scale entertaining.

The Mexican approach to feeding a crowd is fundamentally different from the European model. Instead of plated courses, Mexican feasts are built around communal dishes - large bowls of fillings, stacks of warm tortillas, arrays of salsas, garnishes and sides - that guests assemble themselves. This means almost everything can be prepared in advance, nothing needs last-minute plating, and the interactive, build-your-own format creates a relaxed, convivial atmosphere that plated dinners rarely achieve.

This guide gives you a complete, tested menu for 20 people, with shopping lists, preparation timelines, and recipes that have been specifically scaled for large quantities. Follow it precisely, and you will spend the evening enjoying your own party rather than sweating in the kitchen.

The Menu

Starters (served as guests arrive)

• Guacamole with tortilla chips
• Pico de gallo (fresh tomato salsa)
• Queso fundido (melted cheese dip with chorizo)

Mains (served buffet-style)

• Carnitas (slow-roasted pulled pork)
• Pollo en adobo (adobo-marinated chicken)
• Mexican black beans
• Mexican rice
• Warm corn and flour tortillas

The Salsa and Garnish Bar

• Salsa roja (cooked red chilli salsa)
• Salsa verde (tomatillo salsa)
• Pickled red onions
• Shredded iceberg lettuce
• Crumbled Feta (cotija substitute)
• Sour cream
• Lime wedges
• Fresh coriander
• Sliced jalapeños

Dessert

• Churros with chocolate sauce
• Fresh fruit (mango, pineapple, watermelon) with chilli-lime salt

Drinks

• Agua de jamaica (hibiscus iced tea)
• Micheladas
• Margaritas (batch-made)
• Mexican beer

The Shopping List (Serves 20)

Meat

• 3kg pork shoulder (bone-in, for carnitas)
• 2kg chicken thighs (boneless, skinless, for adobo chicken)
• 300g cooking chorizo (for queso fundido)

Produce

• 10 ripe avocados
• 20 limes
• 2kg ripe tomatoes
• 500g tomatillos (tinned is fine)
• 6 white onions
• 4 red onions
• 3 heads of garlic
• 6 jalapeños
• 4 bunches fresh coriander
• 2 iceberg lettuces
• 3 mangos, 1 pineapple, ½ watermelon (dessert fruit)

Store Cupboard

• 4 tins black beans
• 500g long-grain rice
• 1kg masa harina (if making fresh tortillas) or 40 shop-bought corn tortillas + 20 flour tortillas
• 6 dried ancho chillies
• 4 dried guajillo chillies
• Chipotle paste (1 jar)
• Cumin, oregano, smoked paprika, cinnamon
• Apple cider vinegar
• 500g plain flour + 2 eggs + oil (for churros)
• 200g dark chocolate (for churros sauce)
• 500ml orange juice (for carnitas)
• Tortilla chips (3 large bags)
• Vegetable oil, salt, pepper

Dairy

• 500g mature Cheddar or Monterey Jack (for queso fundido)
• 200g Feta (cotija substitute)
• 500ml sour cream

Drinks

• 100g dried hibiscus flowers (for agua de jamaica) - from Mexican shops
• 24 Mexican lagers (Corona, Modelo, etc.)
• 700ml tequila (for margaritas)
• 350ml triple sec or Cointreau
• Hot sauce (Valentina or Cholula)
• Clamato juice (for micheladas)

Total estimated cost from Tesco/Sainsbury's: £120-160. From a combination of supermarket and Mexican shop: £100-140.

The Timeline: Three Days to Party

Two Days Before

• Do the big shop. Buy everything except avocados (buy these a day before, firm)
• Make the salsa roja: toast and rehydrate dried chillies, blend with roasted tomatoes, garlic and onion. Refrigerate
• Make the pickled red onions: slice 4 red onions, cover with lime juice, salt and a pinch of oregano. Refrigerate
• Make the agua de jamaica: simmer 100g hibiscus flowers in 3 litres water with 200g sugar for 15 minutes. Strain, cool, refrigerate

One Day Before

• Start the carnitas: Season the pork shoulder with salt, cumin, oregano, garlic. Place in a large roasting tin with 500ml orange juice and 250ml water. Cover tightly with foil. Roast at 150°C for 5-6 hours until completely falling apart. Shred with two forks. Refrigerate in its juices
• Make the adobo marinade: toast and blend chillies with garlic, cumin, vinegar, oregano. Coat the chicken thighs. Refrigerate overnight
• Cook the black beans: Drain and rinse 4 tins of black beans. Sauté diced onion and garlic in oil, add beans, cumin, salt. Simmer 20 minutes. Partially mash for texture. Refrigerate
• Make the salsa verde: blend tomatillos with roasted jalapeños, garlic, coriander, onion, salt, lime. Refrigerate
• Make the churro dough: 500ml water, 60g butter, 1 tbsp sugar, pinch salt - bring to boil. Add 250g flour, stir vigorously until a ball forms. Cool slightly, beat in 2 eggs. Pipe into strips on baking parchment, freeze. (You will fry them fresh at the party)

Day of the Party

• Morning: Make Mexican rice (cook rice in tomato-chilli broth), prepare garnish bowls (shred lettuce, crumble feta, chop coriander, slice jalapeños, cut lime wedges)
• 2 hours before: Make guacamole (mash avocados with lime, salt, onion, coriander, jalapeño). Cover with cling film pressed directly onto surface to prevent browning
• 1 hour before: Reheat carnitas - spread shredded pork on a large baking tray, drizzle with some of its juices. Blast at 220°C for 15-20 minutes until edges are crispy. This step is essential - the crispy edges are the best part
• 45 minutes before: Cook the adobo chicken - roast the marinated thighs at 200°C for 25-30 minutes. Rest 10 minutes, then slice or shred
• 30 minutes before: Warm the beans and rice. Start warming tortillas (wrap in foil, 10 minutes in a 150°C oven). Make queso fundido (melt cheese in an oven-proof dish under the grill with cooked chorizo)
• 15 minutes before: Make batch margaritas: 700ml tequila + 350ml triple sec + 500ml fresh lime juice + 200ml simple syrup. Stir with ice. Pour into a large jug or punch bowl
• As guests arrive: Set out starters. Relax. Everything else is ready

Setting Up the Buffet

Arrange the buffet in logical order so guests can build their plates:

1. Plates and tortillas (both corn and flour, in a towel-lined basket to stay warm)
2. Proteins: Carnitas and adobo chicken in warm serving dishes
3. Sides: Black beans and Mexican rice
4. Salsa bar: Salsa roja, salsa verde, guacamole, pico de gallo
5. Garnishes: Lettuce, cheese, sour cream, pickled onions, jalapeños, coriander, lime wedges
6. Drinks station (separate table): Margarita jug, michelada supplies, agua de jamaica, beer in ice

Music and Atmosphere

No Mexican feast is complete without the right soundtrack. Create a playlist mixing:

• Classic mariachi (Mariachi Vargas, Vicente Fernández)
• Mexican rock and pop (Café Tacvba, Maná, Julieta Venegas)
• Cumbia (Sonora Dinamita, Los Ángeles Azules)
• Modern Mexican (Natalia Lafourcade, Mon Laferte)

For décor, keep it colourful and simple: papel picado (perforated paper banners, available from Mexican shops and Amazon), candles, fresh limes and chillies scattered along the table, and colourful napkins or tablecloths.

Dietary Accommodations

This menu naturally accommodates most dietary needs with minimal modification:

• Vegetarian: The beans, rice, guacamole, salsas and all garnishes are vegetarian. Add grilled vegetables (courgette, peppers, mushrooms) as an additional protein option
• Vegan: As above, minus sour cream and cheese garnishes. Offer cashew cream as an alternative
• Gluten-free: Corn tortillas are naturally gluten-free. Ensure your hot sauces and seasonings are GF (most are)
• Dairy-free: Everything except the queso fundido, sour cream and cheese garnish is dairy-free

For authentic recipes to practise before the big day, browse our recipe collection. For ingredients - especially dried chillies, masa harina and Mexican spices - visit Mexican shops across the UK. And if you decide to outsource entirely, discover Mexican restaurants that offer catering.