Fun fact: Corn tortillas are totally gluten-free!
In a large skillet, heat the oil, two turns of the pan, over medium-high to high. Add the chorizo and cook, breaking up with a spoon, until crispy at the edges, 2 to 4 minutes. Add the shrimp and season with salt and pepper; add the pineapple and toss with tongs until the shrimp is opaque in the centers and the pineapple is lightly browned, about 3 minutes more. Add the spring onions, jalapeños, cilantro and garlic; toss until the garlic is aromatic and the spring onions wilt, 1 to 2 minutes. Add the tequila; stir until evaporated, about 2 minutes. Add the lime juice and remove from the heat.
Cook the tortillas directly over a gas flame or under the broiler until charred in spots, 1 to 2 minutes per side.
Serve the shrimp filling with the tortillas, cabbage, hot sauce and lime wedges.