That's roughly the regime I've been following in the past 10 years or so. After a year of changing my diet, which was very high in refined carbs and packaged "foods", my weight plummeted from a peak of 85kg to 65kg (a little underweight now). I avoid almost all processed foods and most grains/grain-based foods and use fresh vegetables and meats instead. And, I do eat quite a bit of fat that comes with the meat (from grass fed animals if possible) and this doesn't lead to a single bit of weight gain. I also take 3-4 fairly large steamed sweet potatoes per week. The purple ones are the best - delicious texture and not too sweet. All my food is steamed, boiled, grilled (turbo broiler) or in the form of stews, with generous helpings of coconut oil added to certain foods. Fruit intake is minimal - I've read berries are the best.
While I don't do rigorous exercise, I find 20-30 minutes per day of brisk walking helps. Also trying out the Chinese art of chi-kung. Good for blood circulation.