Heat oil in a large pot over medium-high heat. Add mirepoix and cook, stirring, until softened, about 3 minutes. Add garlic, Italian seasoning, salt, crushed red pepper and ground pepper and cook, stirring, until fragrant, about 1 minute. Add tomatoes and their juices, broth and beans and bring to a boil. Reduce heat to maintain a lively simmer. Cover and cook, stirring occasionally, until the tomatoes begin to break down, about 10 minutes.