The Sandwich Toulouse is a register rather than a fixed recipe: the sandwich as it reads in the food country around Toulouse, where the local accent runs to coarse fresh sausage, white beans, duck, and garlic. The defining element is the saucisse de Toulouse, the long coil of coarse-ground pork seasoned plainly with salt and pepper, grilled or pan-cooked and laid hot into a split crusted loaf. Around it sits the rest of the regional vocabulary: a smear of mustard, a spoon of onions cooked down soft, sometimes a few white beans or a little duck fat carried over from cassoulet country. It is the southwest's table folded into bread, and the sausage is what anchors it.
The logic is coarse grind against crust. Because the sausage is roughly chopped rather than emulsified, every bite has texture, pockets of fat and lean that release juice as you chew, and the bread has to be sturdy enough to take that juice without going slack. A split baguette or a firm country loaf does the work, its crust holding while the crumb soaks just enough to bind the sandwich. Mustard cuts the richness of the pork; the soft onions, sweet from the same pan, round it and add moisture. The sausage has to be cooked through but not dried out, since a saucisse de Toulouse taken too far on the grill turns tight and loses the loose, juicy grain that is the reason to choose it. This is everyday food eaten warm, best within the few minutes the sausage stays hot and the crust stays crisp.
The single-sausage build is treated on its own as the Sandwich Saucisse de Toulouse; the Sandwich Toulouse is the broader regional reading, the same sausage placed inside the wider Toulousain register of beans, confit, and garlic rather than presented alone.
Variations move along the company the sausage keeps. A version with white beans and a little duck fat reads straight out of cassoulet country; one finished with melted Tomme leans richer and more Pyrenean; one with a hotter mustard sharpens the plain pork. Each holds the coarse Toulouse sausage fixed and changes only the southern elements around it. It belongs with the place-named builds the catalog groups under Regional Specialty Sandwiches, and its specific contribution is the southwest register: the cassoulet country's sausage and its companions read as a sandwich, warm and coarse and best eaten fast.