Cook the pasta in a large pot with a pinch of salt according to the package instructions, drain, rinse, and set aside.
1½ pounds dry linguine pasta
Season the steak on both sides. Grill 3-4 minutes per side, or until cooked to your liking. Remove the steak from the grill and cover it with tinfoil while it rests. (You can use a grill pan if you don't have an outdoor grill).
1 teaspoon seasoning mix, 12 ounces skirt steak or New York Strip steak
In a skillet over medium high heat, cook the garlic in the olive oil for 1-2 minutes.
1 tablespoon extra virgin olive oil, 3 cloves garlic
Remove the skillet from the heat and add the brandy (or beef stock). Cook for 1-2 minutes until the liquid reduces.
½ cup brandy or beef stock
Add the tomatoes and additional seasonings. Cook for 10 minutes, stirring often.
1 28 ounce can diced tomatoes, ½ teaspoon sugar, ¼ teaspoon crushed red pepper flakes, ½ cup fontina cheese, 3 tablespoons crumbled blue cheese, salt and black pepper
Reduce the heat to low and add in the horseradish, along with half the blue cheese and the cream. Cook 1-2 minutes until the sauce is thickened.
1 tablespoon prepared horseradish, 1 cup light cream
Add the spinach and pasta to the sauce and toss to coat.
3 cups baby spinach
Place the sliced steak on top of the pasta and garnish with the remaining blue cheese.
3 tablespoons crumbled blue cheese