Recipes » Main Dish » Roasted Tomato Sauce With Portobello Mushroom
T. Colin Campbell Center for Nutrition Studies
Roasted Tomato Sauce With Portobello Mushroom Over Red Lentil Penne

With protein-rich red lentil penne pasta, this dish is sure to impress friends and family whether they’re foodies or fitness fanatics or both.


  • 1 1 box or pack of red lentil penne—8 oz


  • 2 cups of portobello mushrooms, sliced into ½ inch pieces
  • 1 ½ Tbsp garlic cloves, minced
  • ½ cup fresh basil, rough chopped
  • 12-15 plum tomatoes, cut in fourths
  • 1 cup of low sodium vegetable stock
  • ½ cup medium yellow onion, diced
  • ½ cup medium red onion, diced



  • 1. Preheat your oven to 500 degrees F.
  • 2. Place tomatoes on a baking sheet lined with a silicone mat or parchment paper.
  • 3. Once the oven is preheated, adjust the oven setting to broil. If you have a broiler, set it to high. Place the tomatoes on the top rack of the oven, about 6-8 inches from the heating elements, and set timer for 5 minutes
  • 4. Once the timer goes off, check the tomatoes to see how done they are. You're looking for blistering on the skins and even some charring. This may take up to 10 minutes, depending on the oven. Once this is accomplished, remove the tomatoes from the oven and set aside to cool for a few minutes
  • 5. Once cooled, process the tomatoes in a blender or Vitamix until pureed. Set aside.
  • 6. Place a medium saucepan on high heat for 60 seconds. Add the garlic, basil, mushrooms, and onions. Stir for about one minute until seared. Add the vegetable stock and deglaze the pan by stirring the bottom with a spoon.
  • 7. Add in the blended tomatoes to the mushroom mix and stir. Bring the mixture to a boil, then reduce to a simmer for 45 minutes with a lid loosely on top allowing steam to release from the sauce so it can reduce and thicken.
  • 8. Add seasonings to taste if preferred.

Red Lentil Penne

  • 1. Add the pasta to a boiling pot of filtered water and cook for 7-8 minutes or until al dente (firm to bite).
  • 2. Strain and rinse.
  • 3. Serve in a large bowl topped with your home-made sauce and fresh basil. Enjoy!

Cooking Tips

  • 1. Save all vegetable scraps for a future stock. The vegetable stock I use for cooking is SOS-free and homemade from saved scraps.
  • 2. If you can’t find red lentil penne at your local store, try online. You can also substitute your favorite whole-grain pasta.

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