Finely dice the onion, carrot and celery stalk.
1 medium yellow onion, 1 small carrot, 1 celery stalk
Heat a skillet over medium heat, add 1 tsp of olive oil and add the meat. Brown it for 5 minutes. Transfer the ground meat to a dish and set aside.
2 teaspoon olive oil, 1 lb ground beef
In the same skillet add the remaining olive oil and saute the onion, carrots, and celery stalk until tender.
2 teaspoon olive oil
Next, add the garlic and saute for 1 more minute.
1 teaspoon minced garlic
Add back the ground meat to the vegetables and mix everything. Season with salt, pepper, and oregano.
1 teaspoon salt, 1/4 teaspoon black pepper, 1 lb ground beef, 1 teaspoon oregano
Reduce to low heat, add the diced tomatoes and let it simmer for 15 minutes.
1 can diced tomatoes