Step 2
Heat oil in a Dutch oven over medium heat. Add onion and garlic; cook and stir until tender, 3 to 5 minutes. Stir in crushed tomatoes, tomato sauce, plant-based sausage, meat substitute crumbles, tomato paste, water, 1 tablespoon parsley, sugar, 1/2 teaspoon salt, basil, Italian seasoning, fennel seeds, and pepper. Bring to a boil, then reduce heat; simmer, covered, stirring occasionally, until thickened, about 1 1/2 hours.