Crockpot Pepper Steak

Ingredients :
1 red bell pepper, sliced
1 green bell pepper, sliced
1 white onion, sliced
1 can of diced tomatoes
2 pounds of sirloin steak, cut into strips
2 tsp garlic, minced
2 tbsp Olive Oil
⅔ cup hot water
1 cube beef bouillon
3 tbsp Soy Sauce
1 tbsp Cornstarch
1 tbsp brown sugar
2 tsp Worcestershire Sauce
Salt and pepper to taste
Heat the Olive oil in a skillet
Add the steak to the skillet and saute until it is browned on each side
Dissolve the bouillon in the hot water and pour it into the crockpot
Whisk the cornstarch into the bouillon and water.