Grill chicken and julienne slice it. Sauté portabella in olive oil and until softened to touch (about 2-3 minutes over high heat of gas range). Season with salt and pepper.
Add garlic and chicken and beef soup base. When mixture begins to simmer, add spinach and cook for 1-2 minutes or until it wilts. Add grilled chicken and cream; simmer some more until it reduces (about 5 minutes). Toss in penne pasta and serve.
Submitted by: p.d. smirnov