Mexican Rice

This is from The Food Nanny Rescues Dinner. You can make it a one-dish meal if you add small chunks of chicken, the way my daughter likes it.   1 tbsp. butter 1 tbsp. canola oil 1/4 cup chopped onion 3 to 4 garlic cloves, minced [I use two cloves] 1 1/2 cups uncooked long grain white rice 1 vine-ripened tomato, diced 3 cups chicken broth [I use 3 cups water + bouillon] 1 tsp. salt [I omit because bouillon is salty]   Heat the butter and oil in a medium saucepan over medium heat. Add the onion and garlic and cook and stir until the onion is soft; be careful to avoid burning. Add the rice and stir until the rice browns a bit. Stir in the tomato, broth, and salt. Bring to a boil, cover, and decrease the heat to very low. Simmer 15 to 20 minutes and serve immediately.