Spaghetti with Veggies, 'Meats' & Avocado Sauce

Our fridge and pantry were running low and all we had were mushrooms, two ripe avocados, some herbs (parsley and cilantro), limes, some leftover vegan “meats” (Field Roast Breakfast Sausage and Upton’s Bacon Seitan) from Saturday’s hearty brunch, a small leek stalk and two ears of corn: