Low Carb Mexican Beef and Spinach Casserole

Name: Low Carb Mexican Beef and Spinach Casserole
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: Mexican
Ingredients: 1 lb ground beef; 1/2 cup onion; 10 ounces frozen chopped spinach (thawed and well-drained); 8 ounces cream cheese, softened; 1/3 cup sour cream; 2 teaspoons taco seasoning; 10 ounces Rotel Tomatoes, drained; 1/4 cup canned sliced pickled jalapeno pepper; salt and pepper, to taste