Is it possible to make a diet without bread and pasta without too many sacrifices  ?Yes, as long as the alternatives are valid and do not provide for the total exclusion of carbohydrates. These alternatives are natural, and allow us to make a diet with a little less carbohydrates. In addition, this will make it more difficult to be tempted to associate multiple sources of carbohydrates together (which generally increases the carbohydrate load of the meal, affecting our tendency to gain weight), because we cannot eat bread, but we will find satisfaction in the same way. from the alternatives that I propose, and above all we will not have any contraindications for our health. I don’t make it a question of gluten yes or gluten no. Simply limiting or eliminating the foods we eat every day can be useful for making us have a varied diet.

Here’s what I propose to make a diet without bread and pasta.
Instead of bread, eat potatoes . In the evening, to accompany the protein dish (if we eat it in the evening) and the vegetables, we eat a boiled potato that weighs 200 gr when raw . It is equivalent to about 160/180 calories, the equivalent of 70/80 grams of bread but it is full of vitamins, vegetable proteins, resistant starch useful for bacterial flora, mineral salts and water. The potato can be boiled or baked, in the oven, with a pinch of salt. Alternatively, a chickpea porridge, which is obtained by making a kind of chickpea flour polenta on the stove, then spread it on a baking sheet, seasoned with oil and rosemary, and eat it like a pizza.
Instead of pasta(and apart from the rice), you can eat wholemeal oats or wholemeal spelled, for example in combination with legumes (50/50), or alone (80 grams are enough) or a dish that combines 100 grams of dried legumes of your choice or 200 grams of fresh legumes with pieces of seitan (about 30 g) to have more protein without effort and all the essential amino acids. Accompany the dish of legumes and seitan with vegetables. Another possible substitution, for example for those with celiac disease, is quinoa : rich in protein, quinoa is easier to digest than many whole-grain products. I wash it often before consuming it (until the water becomes clear), and soak it for 8 hours: in this way it will sprout easily, becoming more digestible and nutritious.
Or buckwheat. The calories are the same as pasta, more or less, and these false cereals, combined with vegetables, still have a good intake of carbohydrates, but more balanced with proteins.