In a large dutch oven, heat the oil over medium heat.
Add the onion, bell pepper and cook, stirring occasionally until onion is translucent.
Add the rest of the vegetables (eggplant, zucchini, garlic) and a generous pinch of salt and black pepper. If you like a little kick, add a smidge of crushed red pepper flakes.
Reduce the heat to medium low, cover and cook for 15 minutes, stirring occasionally.
Add the red wine to deglaze, stirring to remove any bits from the bottom of the pan.
Add the tomato paste and stir to combine.
Add the crushed tomatoes and simmer, covered, stirring occasionally, until the vegetables are tender, about 15 minutes.
Just before serving, stir in the basil.
For the squash:
Prepare as instructed in the "basic prep" steps above.
Toss squash strands with a pinch salt/pepper and top with sauce!