1 (12-ounce) package frozen riced cauliflower (about 3 cups)
1 tablespoon vegetable oil
1/2 cup chopped onion
2 cloves garlic, minced
2 pounds ground beef
1/2 bell pepper, chopped
2 (1.25-ounce) packages taco seasoning (about 4 tablespoons)
3 cups shredded cheddar cheese, divided
1 cup salsa
1 cup heavy cream
Chopped fresh cilantro, optional garnish