In a large Dutch oven, heat olive oil over medium-high heat. Add the short ribs and sear for about 3-4 minutes on each side until browned. Remove the ribs and set aside.

Sauté the Vegetables

In the same pot, add the chopped onion, carrot, and celery. Sauté for 5-7 minutes until softened. Add minced garlic and sauté for another minute.

Add Tomato Paste and Wine

Stir in the tomato paste and cook for 2 minutes. Pour in the red wine and scrape the bottom of the pot to deglaze. Bring to a simmer.

Add Broth and Herbs

Return the short ribs to the pot. Add beef broth, thyme, and bay leaves. Bring to a boil, then reduce heat to low.

Braise the Ribs

Cover and simmer for 3 hours, or until the meat is tender and falling off the bone. Check occasionally and add water if needed.

Preparing the Mashed Potatoes

Cook the Potatoes

In a large pot, bring salted water to a boil. Add the quartered potatoes and cook until tender, about 15-20 minutes.

Mash the Potatoes

Drain the potatoes and return to the pot. Add butter, milk, salt, and black pepper. Mash until smooth and creamy.

Preparing the Seasonal Vegetables

Sauté the Vegetables

In a skillet, heat olive oil over medium heat. Add sliced carrots and green beans. Sauté for about 5-7 minutes until tender. Season with salt and pepper to taste.

Serving

Plate the Dish

Serve the braised short ribs on a plate with mashed potatoes and sautéed seasonal vegetables on the side.