Comforting Philly Cheesesteak Bowl with Cheese Sauce - ioanacooks

Ingredients

• 1 pound ground beef (80/20 blend)
• 2 cups cooked white rice
• 1 red bell pepper, thinly sliced
• 1 green bell pepper, thinly sliced
• 1 medium red onion, thinly sliced
• 2 tablespoons unsalted butter
• 2 tablespoons all-purpose flour
• 1 clove garlic, minced
• 1 1/2 cups half-and-half
• 1 1/2 cups shredded white cheddar cheese
• 1/2 teaspoon ground mustard
• Salt and black pepper, to taste
• 1 tablespoon butter, for sautéing vegetables
• Salt and black pepper, to season beef