Brush both sides of each tortilla with 1 teaspoon oil. Place on large baking sheet and bake for about 6 minutes or until browned. Remove from oven and let cool and break into large pieces.
In a medium bowl, whisk together the salsa, sour cream and milk. Keep covered and refrigerated until ready to use.
Heat remaining 1 teaspoon oil in a large nonstick skillet over medium-high heat. Add the beef and sauté, breaking up with the back of a wooden spoon, until browned, about 5 minutes. Add the onions and peppers and continue to cook, stirring frequently, until the vegetables soften, about 5 more minutes. Add the garlic, chili powder, salt and pepper and cook for another 2 minutes. Add the canned tomatoes and beans and cook for another 10 minutes or until the liquid is mostly evaporated. Remove from the heat.
Divide the lettuce among 4 dinner plates. Top each with cherry tomatoes, cilantro, cheese, dressing and 1/2 cup of the beef mixture (save the remaining mixture for another use). Serve immediately with the crispy tortilla pieces on the side.
Nutrition information per serving:
Calories370Fat17 gSodium725 mg