It is laid out like a sideways "U". At each station, you can "grab <ingredient"> and it will start a fight. Each mob drops an item you can use to assemble a taco at the end of the "U". The menu on the will will let you know which ingredients you need and the further down you go in the menu, the harder the tacos get.
In most rooms, you can go "down" and enter a brief falling room before landing on the floor. There are multiple cockroaches on the floor. Once the cockroaches are dead, at the westernmost edge is a room with a grate you can break to enter a hidden room to the west. In there is a chihuahua. After killing the chihuahua, you can use "door" to leave the area.
Since the Lettuce (and every taco , since they call contains lettuce) can force you out of the room, you can potentially be sent down. It may be worthwhile to head down right off the bad and clear out the cockroaches, break the grate, and kill the chihuahua before you get started. It will also mean you can escape more quickly if you need to.
Each ingredient has a different abilities and tacos have the combined abilities of their ingredients:
- shell: bleed effect
- cheese: force unwield of weapon
- lettuce: force move to another room
- meat: -con debuff
- hot sauce: blinds
- guacamole: force remove of gear
- sour cream: regens itself (Death taco will get 4 with sour cream)
Recipes for each taco are:
- veggie taco: shell, lettuce, tomatoes
- cheesy taco: shell, lettuce, tomatoes, cheese
- meat taco: shell, lettuce, tomatoes, cheese, meat
- works taco: shell, lettuce, tomatoes, cheese, meat, sour cream, guacamole
- DEATH TACO: shell, lettuce, tomatoes, cheese, meat, sour cream, guacamole, hot sauce
After defeating any taco, you can 'push door' from assembly room. Otherwise, you can do go 'down' from any room. You'll fall for two round and then be on the floor where there will be a bunch of cockroaches. They're much smaller than any ingredient. After killing all of them, in the westmost room, you can 'break grate', kill the dog, and then use the 'door' to leave.
Each ingredient drops an item you need to assemble the final taco. Drops from the taco itself will depend on the current scaler. 91 is the break point for maximum awards
- A Veggie Taco (<strength>)
- plain: +3 wis, 75% overmax hp only, three uses
- crisp: +4 wis, 100% overmax hp only, three uses
- A side of rice (<strength>)
- moist: 37.3% hp/sp overmax, three uses
- steaming: 50% overmax hp+sp, three uses
- A <size> pop (sp heal x3-4, "refill pop" will work several times with a chance to fail and lose the cup.)
- Small: ~100 sp heal, x3
- Large: 250 sp heal, x4
- A Cerveza (<strength>)
- (plain) first time +2 con. Each drink is 50% overmax sp. 4 uses.
- (refreshing) first time +3 con. Each drink 83% overmax sp.
- (strong) first time +4 con, each is 100% overmax sp, 3 uses
- tin foil (shiny): boost radiation and mental ac
- nacho cheese (huge): boosts ice and acid ac
- meat paste (brick): boost edge and energy ac
- sour cream (huge): boosts fire and electric ac
- Refried beans (brick): boost blunt and poison ac
- Side of beans (spicy) = room damage, not sure type, duration or amount
- Sliced jalapenos (hot) = hp regen +10 a round
- Cinnamon twists (sugary) = once/round can use for more damage, maybe 6 or 7 uses
- Wet wipe (gigantic) = room peace, one use. To use: "wipe hands". Doesn't work on all mobs.
- Cup of salsa (giant) = +4 dex, +4 int, +2 wis, +2 cha (Lvl 114) - random stat boost ?
- Lime wedge (juicy). Add Acid damage to weapon
- Packet of hot sauce (fire). Adds fire damage to weapo
- Leaf of Lettuce. Adds WC and converted all wc to blunt
- Guacamole skin treatment (medium): Level 54 - damage reduction - large amount or long duration.
- Quesadilla Codpiece (medium): other-type armor
- Spork Lance (wicked) (enchanted)
Thanks to Fluffy who gave drop info and to those who helped compile it.
Scaler 45: Crispy Taco Shell [ 61190] (60k - 65k) Shredded Lettuce [ 70300] (67k-70k) Soggy Diced Tomatoes [ 67945] (67k-74k) Grated Cheese [ 89515] (79k - 90k) Menacing Mystery Meat [ 129610] (118k - 135k) Smelly Sour Cream [ 329495] (329k) Gigantic Guacamole [ 279350] (279k) Packet of Hot Sauce [ 457750] (457k) Scaler 55: Shredded Lettuce [ 135615] (135k-144k) Soggy Diced Tomatoes [ 172060] (162k-183k) Grated Cheese [ 265645] (265k-285k) Menacing Mystery Meat [ 290065] (290k) Suspiciously Strong Meat Taco  (1.0M) Cheesy Taco [ 502185] (502k-554k) Scaler 58: Crispy Taco Shell [ 172875] (172k) Shredded Lettuce [ 161695] (161k) Soggy Diced Tomatoes [ 202205] (202k) Cheesy Taco [ 636030] (636k) Scaler 60: Shredded Lettuce [ 169345] (169k) Scaler 62: Crispy Taco Shell [ 213312] (190k - 215k) Shredded Lettuce [ 222097] (205k - 222k) Soggy Diced Tomatoes [ 269475] (230k - 270k) Menacing Mystery Meat [ 423088] (416k - 434k) Gigantic Guacamole [ 1013672] (1.01M - 1.03M) Packet of Hot Sauce [ 1530773] (153k) Veggie Taco [ 579154] (537k - 594k) Scaler 64: Crispy Taco Shell 220k Shredded Lettuce 215k Soggy Diced Tomatoes 280k - 310k Grated Cheese 450k - 480k Menacing Mystery Meat 445k - 460k Gigantic Guacamole 1.09M - 1.19 M Packet of Hot Sauce 1.70M Veggie Taco 545k Cheesy Taco 840k - 890k Scaler 65: Shredded Lettuce 200k-240k Soggy Diced Tomatoes 305k-325k Grated Cheese 475k-525k Cheesy Taco 930k-980k Scaler 66: Soggy Diced Tomatoes 300k Grated Cheese 490k-515k Cheesy Taco 960k-970k Scaler 68: Crispy Taco Shell 295k - 320k Shredded Lettuce 235k - 290k Soggy Diced Tomatoes 355k - 405k Grated Cheese 520k - 555k Menacing Mystery Meat 585k - 610k Smelly Sour Cream 1.47M - 1.51M Gigantic Guacamole 1.38M - 1.39M Packet of Hot Sauce 2.05M - 2.07M Nasty Veggie Taco 670k - 700k Nasty Cheesy Taco 1.05M - 1.15M Scaler 70: Crispy Taco Shell: 365k-389k Shredded Lettuce: 276k Soggy Diced Tomatoes: 451k-456k Grated Cheese: 630k Menacing Mystery Meat: 650k Gigantic Guacamole: 1.5m Smelly Sour Cream: 1.6m - 1.7m Packet of Hot Sauce: 2.2m Nasty Veggie Taco: 798k Nasty DEATH TACO (tm): 16.4m Scaler 91: (scaler breakpoint for max rewards) 1049517 : Crispy Taco Shell (1.04M) 810361 : Shredded Lettuce (810k) 1313345 : Soggy Diced Tomatoes (1.31M 1847050 : Grated Cheese (1.85M) 1656485 : Menacing Mystery Meat (1.66M) 4112177 : Smelly Sour Cream (4.11M) 3804202 : Gigantic Guacamole (3.80M) 4812810 : Packet of Hot Sauce (4.81M) 2298584 : Deadly Veggie Taco (2.30M) 3203586 : Deadly Cheesy Taco (3.20M) 5286163 : Deadly Meat Taco (5.29M) 9665867 : Deadly Works Taco (9.67M) 37179655 : Deadly DEATH TACO (tm) (37.2M) Scaler 96: (Sufficient for highest level drops) A Disgusting Cockroach (17,945) Rabid Chihuahua (505,150) Crispy Taco Shell (1,190,350) Shredded Lettuce (864,415) Soggy Diced Tomatoes (1,453,705) Grated Cheese (1,968,875) Menacing Mystery Meat (1,884,450) Smelly Sour Cream (3,955,570) Gigantic Guacamole (3,857,090) Packet of Hot Sauce (5,216,600) Deadly Veggie Taco (2,507,760) Deadly Cheesy Taco (3,401,040) Deadly Meat Taco (4,782,225) 37,690,200 : Deadly DEATH TACO (tm) Scaler 135: 3047781 : Crispy Taco Shell (3.05M) 2257561 : Shredded Lettuce (2.26M) 3706522 : Soggy Diced Tomatoes (3.71M) 4732194 : Grated Cheese (4.73M) 3885615 : Menacing Mystery Meat (3.89M) 7147075 : Smelly Sour Cream (7.15M) 6957275 : Gigantic Guacamole (6.96M) 8891534 : Packet of Hot Sauce (8.89M) 5744207 : Deadly Veggie Taco (5.74M) 6770223 : Deadly Cheesy Taco (6.77M) 8669830 : Deadly Meat Taco (8.67M) 13771160 : Deadly Works Taco (13.7M)