Ratatouilles Ratatouille

Name: Ratatouille's Ratatouille
Ingredients: 1/2 onion, finely chopped; 2 garlic cloves, sliced thin; 1 c tomato puree; 4 tbsp olive oil, divided; 1 small Italian eggplant; 1 small zucchini; 1 small yellow squash; 1 long red bell pepper; Few sprigs fresh thyme; 1/2 tsp balsamic vinegar; 1/8 tsp crushed red pepper flakes, or to taste; 4 tbsp parmesan cheese, divided; Salt and pepper, to taste