Heat 1 tablespoon of oil in a skillet over medium-high heat.
Add the beef or lamb, cooking until the meat is browned and crumbled. Drain excess grease.
Clear a space in the middle of the skillet. Add the tomato paste and let it heat up until it starts to change color. Then mix it evenly with the meat.
Add wine and give it a vigorous stir to mix in and deglaze the bits of meat stuck to the bottom of the skillet. Let the wine simmer for a few minutes so the alcohol evaporates.
Sprinkle the flour over the meat mixture and stir it in evenly until the flour is completely mixed in.
Dissolve mushroom bullion in water according to package instructions, stirring until it is completely dissolved. Then mix evenly into the meat mixture.
Bring the mixture to a boil, then reduce the heat to low and simmer for five minutes to thicken the mixture. The liquid should have the consistency of a nice gravy.
Preparing the Vegetables
Melt butter in separate skillet from the meat.
Add thyme sprigs, onions, garlic, mushrooms, diced carrots, and peas. Sauté for about 3 minutes until mushrooms are beginning to soften and onions are starting to turn translucent.
Add the zucchini and sauté for an additional 3 minutes.
Stir the vegetable mix into the meat mixture.