Heat a large skillet over medium heat and add bacon. Cook and crumble bacon until crisp, remove and set aside. Wipe out all but about 1 teaspoon of bacon grease from the skillet.
Add zucchini and squash to the skillet, season with 1/4 teaspoon of salt.
Cook the vegetables for 2-4 minutes or until they begin to soften.
Add sausage to the skillet; stir.
Mix artichokes and tomatoes into the skillet.
Add spinach and cook just until spinach begins to wilt, but retains its color.
In a small bowl, whisk together the olive oil, red wine vinegar, lemon juice, herbs, garlic and remaining salt.
Drizzle dressing over skillet, adding more fresh lemon juice if desired.