Melt butter with olive oil in a large skillet over medium heat; add asparagus and red onion to mixture, season with salt, and cook until onion begins to soften, about 5 minutes. Stir red bell pepper into mixture and continue cooking until onions begin to caramelize, another 5 minutes. Remove from heat and add vinegar, Parmesan cheese, sesame seeds, and pine nuts; toss to combine.
Nutritional Facts
Per 2 servings
Calories: 272
Carbohydrate: 16g
Fat: 20g
Fiber: 5g
Protein: 10g
Sugar: 8g
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