This recipe calls for prepared Tri Tip. To make this recipe, I first prepare my Mexican Marinated Smoked Tri Tip. Please click the link to follow that recipe. If you do not have a smoker, you can still use the marinade from my Smoked Tri Tip Recipe, just see the notes of the recipe for instructions on how to grill the tri tip instead.
Slice the meat into thin slices. Slicing tri tip against the grain is a little tricky because the grain changes directions. Take a look at the guide image and slice along the solid line as your first cut to separate the two sections. Then slice in the direction of the dotted lines. I like to target about ¼ inch thick slices.If you cut the meat into smaller pieces after slicing, it will make the sandwiches a little easier to eat.
Prepare the Sandwiches:
I typically make my homemade garlic aioli prior to making these sandwiches. Click the link to follow that recipe, or sub in regular mayonnaise, store-bought garlic aioli, or spicy mayo!
Optional: Toast the buns. Heat a griddle or skillet over medium heat. Split the bun and butter the cut sides, then place on the griddle until golden, about 2-3 minutes. Set aside.
Spread the garlic aioli (or similar) on the bottom bun. Top with arugula, pickled red onions, cooked tri tip, and cheese (use either 1 or 2 slices per sandwich, depending on your preference).
If desired, stick the sandwich under a broiler (in an oven or toaster oven) to melt the cheese, or use a culinary torch (if available). Serve immediately!